[
  {
    "phenotype_id": "PH503",
    "phenotype_version_id": 1006,
    "name": "Calcium Channel Blockers",
    "definition": "Data source: \n\nWe used the Clinical Practice Research Datalink (CPRD), a large primary care database that holds complete electronic patient records (including diagnoses, prescriptions and referrals) from participating family practices across the UK. A hierarchical clinical coding system (Read) is used to record the data. In July 2012, data were available for 644 practices and 13,772,992 patients. Full details of the database have been provided elsewhere.\n\n\nDiabetes cohort:\n\nWe extracted data from 1 April 2006 to 31 March 2012 and, for ease of reporting and analysing, aggregated information into six financial years. Within each year, practice inclusion eligibility was determined by a CPRD assessment algorithm, which informs on practices considered to be of research standard; therefore, our cohort of practices varied over time. For each research standard practice and year, we defined as eligible patients those who were registered with the practice for the full year and were aged 18 years or over in that year. From these patients, using relevant Read codes for type 2 diabetes (e.g. C10F.00: Type 2 diabetes mellitus) and excluding those treated with insulin within 2 years of diagnosis, we identified 246,544 patients over the study period. Diagnoses were not constrained to the study period and a relevant code prior to the study as well as during the study period would flag a patient from the respective year onwards. Data on sex, age and removal from the database due to deaths were available and complete for all patients.We extracted data on diabetes-related macrovascular (myocardial infarction, stroke, peripheral vascular disease or amputation) and microvascular (retinopathy, neuropathy, nephropathy [chronic kidney disease stages 4–5] or foot ulcer) complications as well as comorbidities (asthma, coronary heart disease, chronic kidney disease [excluded from microvascular analysis], chronic obstructive pulmonary disease, depression, dementia, severe mental illness, heart failure, hypertension, stroke [excluded from macrovascular analysis], cancer, epilepsy, osteoarthritis, osteoporosis and hypothyroidism). Although we aimed to include all conditions associated with diabetes, the choice was partially determined by the domains incentivised under the Quality and Outcomes Framework (QOF), for which accuracy of diagnosis is considered high. Information was also extracted on smoking (never smoked, current, exsmoker and missing data),BMI, HbA1c levels (%), cholesterol levels (mmol/l) and systolic/diastolic BP (mmHg). Biometric measurement data were cleaned and we calculated patient means for each year when more than one relevant record was available. Using product lists we determined prescription prevalence (at least one) for relevant medications: ACE inhibitors, acarbose, α-blockers, anticoagulants, antiplatelet agents, β-blockers, calcium-channel blockers, thiazide diuretics, loop diuretics, dipeptidyl peptidase-4 inhibitors, glucagon-like peptide- 1 agonists, statins and other lipid-lowering drugs, meglitinides , metformin, sulfonylureas and thiazolidinediones. For approximately 60% of the practices, records were linked to Office of National Statistics (ONS) mortality data and we had access to death dates for all their patients. For these, using ICD-10 codes (www.who.int/classifications/icd/en/) we were able to estimate deathslinked to specific causes (underlying or in the top three): diabetes (E10–E16), ischaemic heart disease (I21–I22), stroke (I60–I64) or stroke excluding bleeds (excluding I63).\n\n\n\n\n\n\n\n\n",
    "implementation": "",
    "publications": [
      {
        "doi": null,
        "details": "Evangelos Kontopantelis, David A Springate, David Reeves, Darren M. Aschroff, Martin Rutter, Iain Buchan, Tim Doran, Glucose, blood pressure and cholesterol levels and their relationships to clinical outcomes in type 2 diabetes: a retrospective cohort study. Diabetologia, 58:505-518, 2015. "
      }
    ],
    "validation": "",
    "citation_requirements": "",
    "created": "2021-10-06T16:22:32.338224Z",
    "author": "Evangelos Kontopantelis, David A Springate, David Reeves, Darren M. Aschroff, Martin Rutter, Iain Buchan, Tim Doran, Matthias Pierce, Darren M. Ashcroft",
    "collections": [
      {
        "name": "ClinicalCodes Repository",
        "value": 25
      },
      {
        "name": "Phenotype Library",
        "value": 18
      }
    ],
    "tags": null,
    "organisation": null,
    "world_access": 1,
    "updated": "2021-10-06T16:22:32.338252Z",
    "sex": [
      {
        "name": "Both",
        "value": "3"
      }
    ],
    "type": [
      {
        "name": "Drug",
        "value": "3"
      }
    ],
    "ontology": null,
    "phenoflowid": "",
    "data_sources": [
      {
        "name": "CPRD GOLD",
        "value": 5,
        "uid": "a29feafa-7bdd-44e9-b977-c9d26425e67f",
        "url": "https://healthdatagateway.org/en/dataset/694",
        "datasource_id": 694
      }
    ],
    "coding_system": [
      {
        "name": "GPRD product codes",
        "value": 14
      }
    ],
    "event_date_range": "01/04/2006 - 31/03/2012",
    "concept_information": [
      {
        "concept_id": 1872,
        "concept_version_id": 4882,
        "concept_name": "Calcium Channel Blockers - Primary Care",
        "coding_system": {
          "id": 14,
          "name": "GPRD product codes",
          "description": "GPRD product codes"
        },
        "phenotype_id": "PH503",
        "phenotype_version_id": 1006,
        "phenotype_name": "Calcium Channel Blockers",
        "code_attribute_header": [
          "Coding System (CPRD_product_code)",
          "Entity type",
          "Category"
        ],
        "codes": [
          {
            "code": "10135",
            "description": "NIFEDIPRESS MR modified release tablet 10mg [SANDOZ]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "10136",
            "description": "NIFEDIPRESS MR modified release tablet 20mg [DEXCEL]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "10153",
            "description": "FELENDIL XL modified release tablet 5mg [RATIOPHARM]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "10246",
            "description": "ADIPINE XL tablets 60mg [CHIESI]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "10267",
            "description": "ADIZEM XL capsules 200mg [NAPPPHARM]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "10595",
            "description": "NIMOTOP tablets 30mg [BAYER]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "10688",
            "description": "verapamil hydrochloride tablets 160mg ",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "10832",
            "description": "SECURON tablets 80mg [ABBOTT]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "1118",
            "description": "verapamil hydrochloride tablets 40mg ",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "1120",
            "description": "verapamil hydrochloride tablets 80mg ",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "11223",
            "description": "ANGITIL SR capsules 90mg [CHIESI]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "1130",
            "description": "VIAZEM XL capsules 300mg [GENUS]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "11512",
            "description": "NIFEDIPRESS MR modified release tablet 10mg [DEXCEL]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "11547",
            "description": "nimodipine tablets 30mg ",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "11567",
            "description": "ramipril with felodipine modified release tablet 5mg + 5mg ",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "11769",
            "description": "CALCHAN MR tablets 20mg [RANBAXY]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "11770",
            "description": "DILZEM SR capsules 60mg [TEVA]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "11777",
            "description": "verapamil hydrochloride solution sugar-free 40mg/5ml ",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "11922",
            "description": "diltiazem oral suspension 60mg/5ml ",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "11943",
            "description": "CARDENE capsules 20mg [ASTELLAS]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "11965",
            "description": "ramipril with felodipine modified release tablet 2.5mg + 2.5mg ",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "11966",
            "description": "MOTENS tablets 2mg [BOEH INGL]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "11972",
            "description": "VERTAB SR tablets 240mg [CHIESI]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "11973",
            "description": "CALCICARD CR controlled release tablet 120mg [IVAX]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "12104",
            "description": "CORDILOX tablets 160mg [IVAX]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "12392",
            "description": "UNIVER sustained release capsules 180mg [TEVA]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "12606",
            "description": "NIFELEASE modified release tablet 20mg [EASTERN]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "12613",
            "description": "UNIPINE XL modified release tablet 30mg [GENUS]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "1262",
            "description": "nifedipine 12 hour modified release tablets 20mg ",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "12639",
            "description": "DILTIAZEM HYDROCHLORIDE modified release tablet 90mg [ACTAVIS]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "12705",
            "description": "ANGIOZEM CR slow-release tablets 90mg [ASHBOURNE]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "12875",
            "description": "CARDENE SR capsules 45mg [ASTELLAS]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "1289",
            "description": "TILDIEM RETARD tablets 120mg [SANOFI/AVE]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "1298",
            "description": "verapamil hydrochloride modified release tablet 240mg ",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "1300",
            "description": "NIFENSAR XL sustained release tablets 20mg [RHONE]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "13027",
            "description": "VIAZEM XL capsules 240mg [GENUS]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "13033",
            "description": "ANGITIL XL capsules 240mg [CHIESI]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "13075",
            "description": "DILZEM XL capsules 180mg [TEVA]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "13127",
            "description": "DILZEM XL capsules 240mg [TEVA]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "13139",
            "description": "ADIPINE XL tablets 30mg [CHIESI]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "13240",
            "description": "DILZEM XL capsules 120mg [TEVA]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "13243",
            "description": "lercanidipine hydrochloride tablets 20mg ",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "13251",
            "description": "VERA-TIL SR tablets 240mg [TILLOMED]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "13302",
            "description": "DILZEM SR capsules 90mg [TEVA]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "13410",
            "description": "ANGIOZEM tablets 60mg [ASHBOURNE]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "13672",
            "description": "ANGIOPINE MR modified release tablet 10mg [ASHBOURNE]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "13699",
            "description": "ANGIOPINE LA tablets 40mg [ASHBOURNE]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "13856",
            "description": "VERAPRESS MR tablets 240mg [ACTAVIS]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "13926",
            "description": "diltiazem 24 hour modified release capsules 360mg ",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "13965",
            "description": "CORDILOX MR tablets 240mg [IVAX]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "14300",
            "description": "ZANIDIP tablets 20mg [RECORDATI]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "14305",
            "description": "VASCALPHA prolonged release tablet 10mg [ACTAVIS]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "1449",
            "description": "nifedipine 24 hour modified release tablets 30mg ",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "14861",
            "description": "CALCHAN MR tablets 10mg [RANBAXY]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "15117",
            "description": "nifedipine with atenolol capsules 20mg + 50mg ",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "15221",
            "description": "DILCARDIA XL modified release capsules 180mg [GEN (UK)]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "15288",
            "description": "ANGITIL XL capsules 300mg [CHIESI]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "1529",
            "description": "POSICOR tablets 50mg [ROCHE]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "1538",
            "description": "diltiazem tablets 60mg ",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "15652",
            "description": "mibefradil tablets 50mg ",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "15715",
            "description": "GENALAT RETARD modified release tablet 20mg [WYETH PHAR]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "1574",
            "description": "verapamil hydrochloride modified release capsules 120mg ",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "16038",
            "description": "DILZEM SR capsules 120mg [TEVA]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "16073",
            "description": "NIFEDIPRESS MR modified release tablet 10mg [TEVA]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "16162",
            "description": "amlodipine oral suspension 5mg/5ml ",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "16328",
            "description": "VERAPRESS modified release tablet 240mg [DEXCEL]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "16677",
            "description": "CORDILOX tablets 80mg [IVAX]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "1684",
            "description": "BETA-ADALAT capsules 50mg + 20mg [BAYER]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "16850",
            "description": "ANGIOZEM CR slow-release tablets 120mg [ASHBOURNE]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "1686",
            "description": "diltiazem 12 hour modified release capsules 90mg ",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "17006",
            "description": "TRIAPIN modified release tablet 5mg + 5mg [SANOFI/AVE]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "17325",
            "description": "CARDILATE MR tablets 10mg [IVAX]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "17338",
            "description": "NIFEDOTARD 20 MR modified release tablet 20mg [GALEN]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "17342",
            "description": "NIVATEN RETARD modified release tablet 10mg [ACTAVIS]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "17406",
            "description": "ZEMTARD XL capsules 180mg [GALEN]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "17425",
            "description": "ZEMTARD XL capsules 120mg [GALEN]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "17448",
            "description": "NIFEDIPRESS MR modified release tablet 10mg [STERWIN]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "1747",
            "description": "verapamil hydrochloride tablets 120mg ",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "17474",
            "description": "felodipine with ramipril modified release tablet 5mg + 5mg ",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "1748",
            "description": "CORDILOX tablets 120mg [IVAX]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "17492",
            "description": "ZEMTARD XL capsules 300mg [GALEN]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "17557",
            "description": "FELOTENS XL tablets 5mg [GENUS]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "17566",
            "description": "FELOTENS XL tablets 10mg [GENUS]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "17586",
            "description": "SLOZEM capsules 300mg [MERCK SER]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "17599",
            "description": "VERAPRESS MR tablets 240mg [SANDOZ]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "17640",
            "description": "AMLOSTIN tablets 5mg [DISCOVERY]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "17666",
            "description": "VIAZEM XL capsules 180mg [GENUS]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "18038",
            "description": "nisoldipine modified release tablet 20mg ",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "18223",
            "description": "trandolapril with verapamil modified release capsules 2mg + 180mg ",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "1836",
            "description": "diltiazem 8 hour modified release tablets 60mg ",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "18379",
            "description": "DILCARDIA SR modified release capsules 90mg [GEN (UK)]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "18403",
            "description": "DILTIAZEM HYDROCHLORIDE modified release capsules 180mg [HILLCROSS]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "18404",
            "description": "DILTIAZEM HYDROCHLORIDE SR capsules 60mg [HILLCROSS]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "1854",
            "description": "ADALAT LA tablets 30mg [BAYER]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "18606",
            "description": "diltiazem and hydrochlorothiazide modified release capsules 150mg + 12.5mg ",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "18830",
            "description": "DISOGRAM SR capsules 90mg [RANBAXY]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "18834",
            "description": "DISOGRAM SR capsules 60mg [RANBAXY]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "18852",
            "description": "DISOGRAM SR capsules 120mg [RANBAXY]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "18874",
            "description": "DISOGRAM SR capsules 180mg [RANBAXY]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "18975",
            "description": "CALCICARD tablets 60mg [3M]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "19013",
            "description": "CLINIUM tablets 120mg [LEO]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "19129",
            "description": "SYSCOR MR modified release tablet 10mg [FOREST]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "19170",
            "description": "TENSIPINE MR tablets 10mg [GENUS]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "19175",
            "description": "VERAPAMIL HYDROCHLORIDE tablets 40mg [IVAX]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "19426",
            "description": "DISOGRAM SR capsules 240mg [RANBAXY]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "19440",
            "description": "DISOGRAM SR capsules 300mg [RANBAXY]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "19457",
            "description": "RANVERA MR tablets 240mg [RANBAXY]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "19459",
            "description": "VERAPAMIL HYDROCHLORIDE modified release tablet 240mg [HILLCROSS]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "19690",
            "description": "verapamil hydrochloride with trandolapril modified release capsules 180mg + 2mg ",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "1995",
            "description": "diltiazem 12 hour modified release capsules 120mg ",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "20257",
            "description": "CARDILATE MR tablets 20mg [IVAX]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "20311",
            "description": "NIFEDIPRESS MR modified release tablet 20mg [GEN (UK)]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "20459",
            "description": "FELENDIL XL modified release tablet 10mg [RATIOPHARM]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "20579",
            "description": "TARKA capsules 180mg + 2mg [ABBOTT]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "20591",
            "description": "NIFEDIPRESS MR modified release tablet 20mg [TEVA]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "20642",
            "description": "BI-CARZEM SR capsules 60mg [TILLOMED]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "20878",
            "description": "ANGIOPINE capsules 10mg [ASHBOURNE]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "20890",
            "description": "ZEMTARD XL capsules 240mg [GALEN]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "21145",
            "description": "DILCARDIA SR modified release capsules 60mg [GEN (UK)]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "21162",
            "description": "felodipine with ramipril modified release tablet 2.5mg + 2.5mg ",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "21216",
            "description": "HYPOLAR RETARD-10 modified release tablet 10mg [SANDOZ]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "21245",
            "description": "NIFEDIPRESS MR modified release tablet 10mg [ACTAVIS]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "21763",
            "description": "DILTIAZEM HYDROCHLORIDE tablets 60mg [HILLCROSS]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "21773",
            "description": "DILTIAZEM HYDROCHLORIDE tablets 60mg [GEN (UK)]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "21778",
            "description": "DILTIAZEM HYDROCHLORIDE tablets 60mg [APS]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "21795",
            "description": "RETALZEM modified release tablet 60mg [KENT]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "21872",
            "description": "ANGIOPINE capsules 5mg [ASHBOURNE]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "21886",
            "description": "NIFEDIPRESS MR modified release tablet 20mg [ACTAVIS]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "219",
            "description": "diltiazem 12 hour modified release tablets 120mg ",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "21918",
            "description": "OPTIL modified release tablet 60mg [OPUS]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "22019",
            "description": "CALANIF capsules 10mg [BERK]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "22142",
            "description": "CALCILAT capsules 10mg [EASTERN]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "22217",
            "description": "NIMODREL MR tablets 10mg [OPUS]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "22241",
            "description": "mibefradil tablets 100mg ",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "22619",
            "description": "BRITIAZIM modified release tablet 60mg [THAMES]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "22696",
            "description": "SLOFEDIPINE SR modified release tablet 20mg [STERWIN]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "2280",
            "description": "ADALAT RETARD tablets 10mg [BAYER]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "22826",
            "description": "SECURON tablets 160mg [ABBOTT]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "23233",
            "description": "BI-CARZEM SR capsules 90mg [TILLOMED]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "2343",
            "description": "ADALAT RETARD tablets 20mg [BAYER]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "23505",
            "description": "ADIZEM XL PLUS controlled release capsules 150mg + 12.5mg [NAPP]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "23733",
            "description": "OPTIL SR sustained release capsules 90mg [OPUS]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "23736",
            "description": "HYPOLAR XL extra modified release tablet 30mg [SANDOZ]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "23805",
            "description": "nisoldipine modified release tablet 10mg ",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "23823",
            "description": "nisoldipine modified release tablet 30mg ",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "23872",
            "description": "BERKATENS tablets 40mg [BERK]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "24228",
            "description": "NIMODREL MR tablets 20mg [OPUS]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "24365",
            "description": "CARDIOPLEN XL tablets 5mg [CHIESI]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "24366",
            "description": "CARDIOPLEN XL tablets 10mg [CHIESI]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "2453",
            "description": "diltiazem modified release capsules 60mg ",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "25059",
            "description": "BERKATENS tablets 80mg [BERK]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "25132",
            "description": "NIFOPRESS MR tablets 20mg [IVAX]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "2521",
            "description": "ADALAT capsules 10mg [BAYER]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "2528",
            "description": "SLOZEM capsules 120mg [MERCK SER]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "25572",
            "description": "FELOGEN XL tablets 5mg [GEN (UK)]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "25646",
            "description": "NIVATEN RETARD modified release tablet 20mg [ACTAVIS]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "25777",
            "description": "DILCARDIA SR modified release capsules 120mg [GEN (UK)]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "25919",
            "description": "NIFEDIPINE modified release tablet 20mg [HILLCROSS]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "2592",
            "description": "VIAZEM XL capsules 120mg [GENUS]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "2605",
            "description": "nifedipine 12 hour modified release capsules 10mg ",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "26252",
            "description": "BERKATENS tablets 160mg [BERK]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "26265",
            "description": "CALANIF capsules 5mg [BERK]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "26267",
            "description": "OPTIL SR sustained release capsules 120mg [OPUS]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "26269",
            "description": "OPTIL SR sustained release capsules 180mg [OPUS]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "26270",
            "description": "OPTIL XL extra sustained release capsules 300mg [OPUS]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "26309",
            "description": "OPTIL XL extra sustained release capsules 240mg [OPUS]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "26337",
            "description": "CABREN SR tablets 10mg [TEVA]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "26460",
            "description": "DILCARDIA XL modified release capsules 240mg [GEN (UK)]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "26463",
            "description": "ZEMRET XL capsules 240mg [NEOLAB]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "2663",
            "description": "diltiazem modified release capsules 240mg ",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "26759",
            "description": "ZILDIL SR modified release capsules 60mg [CHANELLE]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "26774",
            "description": "nifedipine oral suspension 10mg/5ml ",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "2686",
            "description": "DILZEM XL MR capsules 240mg [ELANPHARMA]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "269",
            "description": "nifedipine capsules 5mg ",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "27135",
            "description": "DILTIAZEM SR capsules 90mg [HILLCROSS]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "27136",
            "description": "DILTIAZEM HYDROCHLORIDE modified release tablet 90mg [HILLCROSS]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "27401",
            "description": "KENZEM SR capsules 90mg [KENT]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "2746",
            "description": "CORACTEN SR modified release capsules 10mg [UCB]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "27685",
            "description": "DILTIAZEM HYDROCHLORIDE XL capsules 300mg [PLIVA]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "2811",
            "description": "ADIZEM SR capsules 180mg [NAPPPHARM]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "28438",
            "description": "TRIAPIN MITE modified release tablet 2.5mg + 2.5mg [SANOFI/AVE]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "28688",
            "description": "NIFEDIPINE modified release tablet 10mg [HILLCROSS]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "28721",
            "description": "NEOFEL XL tablets 5mg [NEOLAB]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "28843",
            "description": "VERAPAMIL HYDROCHLORIDE tablets 80mg [CELLTECH]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "28844",
            "description": "BERKATENS tablets 120mg [BERK]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "2888",
            "description": "TILDIEM modified release tablet 60mg [SANOFI/AVE]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "28949",
            "description": "BI-CARZEM SR capsules 120mg [TILLOMED]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "29",
            "description": "amlodipine (as besilate) tablets 5mg ",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "29044",
            "description": "NEOFEL XL tablets 10mg [NEOLAB]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "29145",
            "description": "FELENDIL XL modified release tablet 2.5mg [RATIOPHARM]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "2926",
            "description": "nicardipine hydrochloride capsules 20mg ",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "29637",
            "description": "VERAPRESS MR tablets 240mg [TEVA]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "29676",
            "description": "CALAZEM modified release tablet 60mg [BERK]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "30197",
            "description": "diltiazem modified release capsules 120mg ",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "30199",
            "description": "nifedipine modified release tablet 30mg ",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "30242",
            "description": "diltiazem modified release capsules 180mg ",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "30462",
            "description": "ETHIMIL modified release tablet 240mg [GENUS]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "30473",
            "description": "CORODAY modified release tablet 20mg [GEN (UK)]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "30557",
            "description": "FELOGEN XL tablets 10mg [GEN (UK)]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "3057",
            "description": "SECURON tablets 120mg [ABBOTT]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "3061",
            "description": "diltiazem 12 hour modified release capsules 180mg ",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "30758",
            "description": "lidoflazine tablets 120mg ",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "30915",
            "description": "CABREN SR tablets 2.5mg [TEVA]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "30991",
            "description": "CABREN SR tablets 5mg [TEVA]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "3118",
            "description": "ADIZEM SR capsules 90mg [NAPPPHARM]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "31336",
            "description": "SYSCOR MR modified release tablet 30mg [FOREST]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "31337",
            "description": "SYSCOR MR modified release tablet 20mg [FOREST]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "31489",
            "description": "BI-CARZEM XL capsules 240mg [TILLOMED]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "31490",
            "description": "ZOLVERA oral solution 40mg/5ml [ROSEMONT]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "31676",
            "description": "DILTIAZEM HYDROCHLORIDE modified release tablet 120mg [ACTAVIS]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "31711",
            "description": "VERAPAMIL HYDROCHLORIDE tablets 80mg [HILLCROSS]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "31737",
            "description": "ZILDIL SR modified release capsules 120mg [CHANELLE]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "31761",
            "description": "AMLOSTIN tablets 10mg [DISCOVERY]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "32089",
            "description": "DILTIAZEM HYDROCHLORIDE SR capsules 120mg [HILLCROSS]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "3221",
            "description": "lacidipine tablets 4mg ",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "32262",
            "description": "DILTIAZEM HYDROCHLORIDE tablets 60mg [CP PHARM]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "32590",
            "description": "VERAPAMIL HYDROCHLORIDE tablets 40mg [GEN (UK)]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "32595",
            "description": "AMLODIPINE tablets 5mg [HILLCROSS]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "32658",
            "description": "DILCARDIA XL modified release capsules 120mg [GEN (UK)]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "32870",
            "description": "DILTIAZEM HYDROCHLORIDE tablets 60mg [STERWIN]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "32917",
            "description": "AMLODIPINE tablets 5mg [IVAX]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "32922",
            "description": "FELODIPINE modified release tablet 10mg [SANDOZ]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "3302",
            "description": "CARDENE SR capsules 30mg [ASTELLAS]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "33025",
            "description": "NIMODREL XL tablets 30mg [ZURICH]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "33091",
            "description": "FELODIPINE modified release tablet 10mg [HILLCROSS]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "3342",
            "description": "SECURON SR tablets 240mg [ABBOTT]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "3343",
            "description": "HALF SECURON SR tablets 120mg [ABBOTT]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "33471",
            "description": "VERAPAMIL HYDROCHLORIDE tablets 40mg [ACTAVIS]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "3370",
            "description": "DILZEM XL MR capsules 120mg [ELANPHARMA]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "33932",
            "description": "PARMID XL tablets 5mg [SANDOZ]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "34093",
            "description": "AMLODIPINE tablets 10mg [HILLCROSS]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "34101",
            "description": "NIFEDIPINE MR modified release tablet 20mg [IVAX]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "34115",
            "description": "nifedipine modified release tablet 60mg ",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "34146",
            "description": "NIFEDIPINE MR modified release tablet 10mg [IVAX]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "34187",
            "description": "NIFEDIPINE modified release tablet 10mg [GEN (UK)]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "34247",
            "description": "NIFEDIPINE capsules 10mg [BERK]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "34377",
            "description": "DILTIAZEM HYDROCHLORIDE SR capsules 90mg [HILLCROSS]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "34475",
            "description": "DILTIAZEM HYDROCHLORIDE modified release tablet 90mg [IVAX]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "34522",
            "description": "NIFEDIPINE capsules 5mg [HILLCROSS]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "34581",
            "description": "DILTIAZEM HYDROCHLORIDE modified release tablet 60mg [KENT]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "34607",
            "description": "NIFEDIPINE capsules 5mg [IVAX]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "34824",
            "description": "DILTIAZEM HYDROCHLORIDE modified release tablet 120mg [IVAX]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "34959",
            "description": "VERAPAMIL HYDROCHLORIDE tablets 40mg [HILLCROSS]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "34975",
            "description": "NIFEDIPINE capsules 5mg [TEVA]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "35084",
            "description": "VASCALPHA prolonged release tablet 5mg [ACTAVIS]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "35096",
            "description": "EXFORGE tablets 10mg + 160mg [NOVARTIS]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "35173",
            "description": "valsartan with amlodipine tablets 160mg + 5mg ",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "35174",
            "description": "valsartan with amlodipine tablets 80mg + 5mg ",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "35189",
            "description": "amlodipine with valsartan tablets 10mg + 160mg ",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "35304",
            "description": "valsartan with amlodipine tablets 160mg + 10mg ",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "35317",
            "description": "EXFORGE tablets 5mg + 80mg [NOVARTIS]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "35329",
            "description": "amlodipine with valsartan tablets 5mg + 80mg ",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "35343",
            "description": "amlodipine with valsartan tablets 5mg + 160mg ",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "35592",
            "description": "CARDIOPLEN XL tablets 2.5mg [CHIESI]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "35646",
            "description": "NEOZIPINE XL tablets 60mg [NEOLAB]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "35696",
            "description": "KENZEM SR capsules 120mg [KENT]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "35697",
            "description": "EXFORGE tablets 5mg + 160mg [NOVARTIS]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "35729",
            "description": "VERAPAMIL HYDROCHLORIDE tablets 80mg [TEVA]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "36202",
            "description": "AMLODIPINE tablets 10mg [ACTAVIS]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "36583",
            "description": "ZEMRET XL capsules 180mg [NEOLAB]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "36620",
            "description": "PARMID XL tablets 10mg [SANDOZ]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "36664",
            "description": "ZEMRET XL capsules 300mg [NEOLAB]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "3676",
            "description": "DILZEM XL MR capsules 180mg [ELANPHARMA]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "37025",
            "description": "nifedipine modified release tablet 20mg ",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "3711",
            "description": "ADIPINE MR 20 modified release tablet 20mg [CHIESI]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "3712",
            "description": "CORACTEN XL modified release capsules 30mg [UCB]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "37184",
            "description": "VALNI XL tablets 30mg [ZENTIVA]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "37530",
            "description": "NEOZIPINE XL tablets 30mg [NEOLAB]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "37726",
            "description": "nifedipine oral suspension 100mg/5ml ",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "37774",
            "description": "KENZEM SR capsules 60mg [KENT]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "37897",
            "description": "FELOTENS XL tablets 2.5mg [GENUS]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "38066",
            "description": "DILTIAZEM HYDROCHLORIDE modified release tablet 60mg [LAGAP]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "38107",
            "description": "NIFEDIPINE SR tablets 30mg [HILLCROSS]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "38434",
            "description": "KELOC SR tablets 10mg [APS]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "38545",
            "description": "TILDIEM LA capsules 200mg [SANOFI/AVE]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "38632",
            "description": "ADIZEM SR capsules 90mg [NAPPPHARM]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "38634",
            "description": "ADIZEM XL capsules 300mg [NAPPPHARM]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "38818",
            "description": "ADIZEM SR capsules 120mg [NAPPPHARM]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "38831",
            "description": "ADIZEM SR capsules 180mg [NAPPPHARM]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "38855",
            "description": "ADIZEM XL capsules 180mg [NAPPPHARM]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "38865",
            "description": "ADIZEM XL capsules 120mg [NAPPPHARM]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "38876",
            "description": "TILDIEM LA capsules 300mg [SANOFI/AVE]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "38882",
            "description": "ADIZEM XL capsules 240mg [NAPPPHARM]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "38964",
            "description": "ADIZEM SR tablets 120mg [NAPPPHARM]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "39009",
            "description": "VERAPAMIL HYDROCHLORIDE tablets 40mg [TEVA]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "3917",
            "description": "ISTIN tablets 5mg [PFIZER]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "39171",
            "description": "BI-CARZEM SR capsules 60mg [TILLOMED]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "39298",
            "description": "BI-CARZEM SR capsules 90mg [TILLOMED]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "3930",
            "description": "nifedipine 24 hour modified release tablets 60mg ",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "3931",
            "description": "POSICOR tablets 100mg [ROCHE]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "39357",
            "description": "NEOFEL XL tablets 2.5mg [NEOLAB]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "3943",
            "description": "verapamil hydrochloride modified release capsules 240mg ",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "39800",
            "description": "VALNI XL tablets 60mg [ZENTIVA]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "39804",
            "description": "AMLODIPINE tablets 5mg [DR REDDY`S]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "39914",
            "description": "AMLODIPINE tablets 5mg [TEVA]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "39984",
            "description": "SEVIKAR film coated tablets 20mg + 5mg [DAIIC-SANK]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "40074",
            "description": "nifedipine capsules 20mg ",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "40316",
            "description": "olmesartan medoxomil with amlodipine tablets 20mg + 5mg ",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "40405",
            "description": "VERAPAMIL HYDROCHLORIDE tablets 120mg [TEVA]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "40633",
            "description": "VASCALPHA prolonged release tablet 5mg [ALMUS]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "40639",
            "description": "olmesartan medoxomil with amlodipine tablets 40mg + 5mg ",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "40668",
            "description": "olmesartan medoxomil with amlodipine tablets 40mg + 10mg ",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "410",
            "description": "nifedipine 12 hour modified release tablets 10mg ",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "41203",
            "description": "SEVIKAR film coated tablets 40mg + 10mg [DAIIC-SANK]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "41205",
            "description": "SEVIKAR film coated tablets 40mg + 5mg [DAIIC-SANK]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "41489",
            "description": "BI-CARZEM SR capsules 120mg [TILLOMED]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "41586",
            "description": "VERAPAMIL HYDROCHLORIDE tablets 80mg [ACTAVIS]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "41635",
            "description": "DILTIAZEM HYDROCHLORIDE tablets 60mg [IVAX]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "41679",
            "description": "VERAPAMIL HYDROCHLORIDE tablets 80mg [IVAX]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "41693",
            "description": "VERAPAMIL HYDROCHLORIDE tablets 120mg [GEN (UK)]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "41979",
            "description": "ADIPINE LA extra modified release tablet 30mg [CHIESI]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "42210",
            "description": "AMLODIPINE tablets 10mg [ZENTIVA]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "4227",
            "description": "ADALAT LA tablets 60mg [BAYER]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "4239",
            "description": "ADIPINE MR 10 modified release tablet 10mg [CHIESI]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "42625",
            "description": "VERA-TIL SR tablets 120mg [ACTAVIS]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "42731",
            "description": "DILTIAZEM SR capsules 120mg [HILLCROSS]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "42804",
            "description": "DILTIAZEM HYDROCHLORIDE XL capsules 180mg [PLIVA]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "42819",
            "description": "DILTIAZEM XL capsules 240mg [HILLCROSS]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "42912",
            "description": "NIFEDIPINE capsules 10mg [TEVA]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "4308",
            "description": "DILZEM SR capsules 90mg [ELANPHARMA]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "43222",
            "description": "VALNI RETARD tablets 20mg [TILLOMED]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "43394",
            "description": "PINEFELD XL tablets 10mg [TILLOMED]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "43410",
            "description": "nifedipine extra modified release tablet 60mg ",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "43430",
            "description": "DILTIAZEM HYDROCHLORIDE modified release tablet 120mg [HILLCROSS]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "43470",
            "description": "AMLODIPINE tablets 5mg [WOCKHARDT]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "43511",
            "description": "NIFEDIPINE capsules 10mg [HILLCROSS]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "43512",
            "description": "FELODIPINE modified release tablet 5mg [HILLCROSS]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "43515",
            "description": "NIFEDIPINE capsules 10mg [ACTAVIS]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "43753",
            "description": "ADALAT LA 30 prolonged release tablet [BAYER]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "43790",
            "description": "VASCALPHA prolonged release tablet 10mg [ALMUS]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "43818",
            "description": "ADALAT LA 60 prolonged release tablet [BAYER]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "43879",
            "description": "VERA-TIL SR tablets 240mg [ACTAVIS]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "43880",
            "description": "AMLODIPINE tablets 5mg [ALMUS]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "4408",
            "description": "SLOZEM capsules 240mg [MERCK SER]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "44192",
            "description": "ZEMRET XL capsules 240mg [TILLOMED]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "44859",
            "description": "FELODIPINE SR tablets 5mg [APS]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "44887",
            "description": "BI-CARZEM XL capsules 300mg [TILLOMED]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "45051",
            "description": "VERAPAMIL HYDROCHLORIDE modified release tablet 240mg [ACTAVIS]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "45070",
            "description": "amlodipine oral suspension 10mg/5ml ",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "452",
            "description": "nifedipine capsules 10mg ",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "45279",
            "description": "AMLODIPINE tablets 5mg [SANDOZ]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "45292",
            "description": "NICARDIPINE capsules 30mg [HILLCROSS]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "45308",
            "description": "VERAPAMIL SR tablets 240mg [GEN (UK)]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "4542",
            "description": "atenolol with nifedipine capsules 50mg + 20mg ",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "45685",
            "description": "ADANIF XL prolonged release tablet 30mg [FOCUS]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "45759",
            "description": "DILTIAZEM HYDROCHLORIDE XL capsules 240mg [PLIVA]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "46009",
            "description": "VERAPAMIL HYDROCHLORIDE tablets 120mg [KENT]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "46233",
            "description": "amlodipine oral liquid ",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "4635",
            "description": "diltiazem 24 hour modified release capsules 200mg ",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "46355",
            "description": "SEVIKAR HCT tablets 20mg + 5mg + 12.5mg [DAIIC-SANK]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "46445",
            "description": "NIFEDIPINE capsules 10mg [IVAX]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "46687",
            "description": "olmesartan medoxomil with amlodipine and hydrochlorothiazide tablets 20mg + 5mg + 12.5mg ",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "46715",
            "description": "olmesartan medoxomil with amlodipine and hydrochlorothiazide tablets 40mg + 10mg + 12.5mg ",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "46724",
            "description": "amlodipine oral solution 5mg/5ml ",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "46792",
            "description": "olmesartan medoxomil with amlodipine and hydrochlorothiazide tablets 40mg + 5mg + 12.5mg ",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "46884",
            "description": "VERAPAMIL HYDROCHLORIDE modified release tablet 240mg [SANDOZ]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "46887",
            "description": "ADANIF XL prolonged release tablet 60mg [FOCUS]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "46937",
            "description": "DILTIAZEM HYDROCHLORIDE tablets 60mg [ACTAVIS]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "46955",
            "description": "VERAPAMIL HYDROCHLORIDE tablets 80mg [GEN (UK)]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "47002",
            "description": "amlodipine oral suspension sugar-free 10mg/5ml ",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "47027",
            "description": "NIFEDIPINE modified release tablet 10mg [KENT]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "47217",
            "description": "ADIPINE LA extra modified release tablet 60mg [CHIESI]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "47222",
            "description": "VERAPAMIL HYDROCHLORIDE modified release tablet 120mg [HILLCROSS]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "47230",
            "description": "VERAPAMIL HYDROCHLORIDE MR tablets 240mg [IVAX]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "47285",
            "description": "NIFEDIPINE XL tablets 60mg [HILLCROSS]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "4732",
            "description": "diltiazem 12 hour modified release tablets 90mg ",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "47331",
            "description": "LERCANIDIPINE tablets 10mg [GEN (UK)]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "47415",
            "description": "DILTIAZEM SR capsules 60mg [HILLCROSS]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "47467",
            "description": "olmesartan medoxomil with amlodipine and hydrochlorothiazide tablets 40mg + 5mg + 25mg ",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "47530",
            "description": "HORIZEM SR capsules 60mg [HORIZON]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "47573",
            "description": "SEVIKAR HCT tablets 40mg + 5mg + 12.5mg [DAIIC-SANK]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "47608",
            "description": "ZEMRET XL capsules 300mg [TILLOMED]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "47614",
            "description": "NIFEDIPINE extra modified release tablet 30mg [HILLCROSS]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "47616",
            "description": "SEVIKAR HCT tablets 40mg + 10mg + 12.5mg [DAIIC-SANK]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "47707",
            "description": "nifedipine oral liquid ",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "47724",
            "description": "BI-CARZEM XL capsules 240mg [TILLOMED]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "47727",
            "description": "SEVIKAR HCT tablets 40mg + 5mg + 25mg [DAIIC-SANK]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "47732",
            "description": "ZEMRET XL capsules 180mg [TILLOMED]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "47887",
            "description": "NIMODREL XL tablets 60mg [ZURICH]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "48009",
            "description": "FELODIPINE modified release tablet 5mg [SANDOZ]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "4808",
            "description": "diltiazem 24 hour modified release capsules 240mg ",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "4852",
            "description": "ADIZEM SR tablets 120mg [NAPPPHARM]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "4856",
            "description": "CORACTEN SR modified release capsules 20mg [UCB]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "491",
            "description": "felodipine modified release tablet 2.5mg ",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "4923",
            "description": "diltiazem 24 hour modified release capsules 180mg ",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "4939",
            "description": "CORACTEN XL modified release capsules 60mg [UCB]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "501",
            "description": "felodipine modified release tablet 5mg ",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "5054",
            "description": "ANGITIL SR capsules 180mg [CHIESI]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "5158",
            "description": "lacidipine tablets 2mg ",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "5162",
            "description": "nifedipine 24 hour modified release capsules 30mg ",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "517",
            "description": "ADIZEM SR capsules 120mg [NAPPPHARM]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "5181",
            "description": "ANGIOPINE MR tablets 20mg [ASHBOURNE]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "5194",
            "description": "DILZEM SR capsules 120mg [ELANPHARMA]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "5234",
            "description": "SLOZEM capsules 180mg [MERCK SER]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "5277",
            "description": "FORTIPINE LA40 tablets 40mg [MERCURY]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "5296",
            "description": "TILDIEM LA capsules 300mg [SANOFI/AVE]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "5326",
            "description": "diltiazem 24 hour modified release capsules 300mg ",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "5348",
            "description": "diltiazem 24 hour modified release capsules 300mg ",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "536",
            "description": "TILDIEM LA capsules 200mg [SANOFI/AVE]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "541",
            "description": "ADALAT LA 20 prolonged release tablet [BAYER]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "5477",
            "description": "nicardipine hydrochloride modified release capsules 30mg ",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "5513",
            "description": "DILZEM SR capsules 60mg [ELANPHARMA]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "5570",
            "description": "ZANIDIP tablets 10mg [RECORDATI]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "5593",
            "description": "lercanidipine hydrochloride tablets 10mg ",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "568",
            "description": "felodipine modified release tablet 10mg ",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "5806",
            "description": "TENSIPINE MR tablets 20mg [GENUS]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "5914",
            "description": "ISTIN tablets 10mg [PFIZER]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "6309",
            "description": "ADIZEM XL capsules 300mg [NAPPPHARM]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "636",
            "description": "diltiazem 12 hour modified release capsules 60mg ",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "6477",
            "description": "amlodipine (as maleate) tablets 10mg ",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "6510",
            "description": "UNIVER sustained release capsules 120mg [TEVA]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "662",
            "description": "ADALAT capsules 5mg [BAYER]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "6856",
            "description": "amlodipine tablets 10mg ",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "700",
            "description": "VERA-TIL SR tablets 120mg [TILLOMED]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "71",
            "description": "amlodipine (as besilate) tablets 10mg ",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "7280",
            "description": "PLENDIL extended release tablets 10mg [ASTRAZENEC]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "729",
            "description": "amlodipine (as maleate) tablets 5mg ",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "737",
            "description": "nifedipine 12 hour modified release capsules 20mg ",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "7398",
            "description": "VIAZEM XL capsules 360mg [GENUS]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "749",
            "description": "amlodipine tablets 5mg ",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "7541",
            "description": "NIFOPRESS RETARD modified release tablet 20mg [MERCURY]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "7562",
            "description": "CARDENE capsules 30mg [ASTELLAS]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "7681",
            "description": "SYNADRIN tablets 60mg [HOECHST]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "793",
            "description": "ADIZEM XL capsules 240mg [NAPPPHARM]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "8201",
            "description": "nicardipine hydrochloride capsules 30mg ",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "8213",
            "description": "nifedipine 24 hour modified release tablets 20mg ",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "8257",
            "description": "PRESCAL tablets 2.5mg [NOV/CIBA]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "8310",
            "description": "isradipine tablets 2.5mg ",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "8524",
            "description": "SECURON tablets 40mg [ABBOTT]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "8558",
            "description": "ADIZEM XL capsules 120mg [NAPPPHARM]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "8642",
            "description": "TENIF capsules 50mg + 20mg [ASTRAZENEC]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "8759",
            "description": "verapamil hydrochloride modified release tablet 120mg ",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "8884",
            "description": "CORDILOX tablets 40mg [IVAX]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "8945",
            "description": "UNIVER sustained release capsules 240mg [TEVA]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "8975",
            "description": "verapamil hydrochloride modified release capsules 180mg ",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "9240",
            "description": "ADIZEM XL capsules 180mg [NAPPPHARM]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "9269",
            "description": "nifedipine 24 hour modified release tablets 40mg ",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "9334",
            "description": "PLENDIL extended release tablets 2.5mg [ASTRAZENEC]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "9374",
            "description": "ADIZEM modified release tablet 60mg [NAPPPHARM]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "9386",
            "description": "nicardipine hydrochloride modified release capsules 45mg ",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "939",
            "description": "TILDIEM RETARD tablets 90mg [SANOFI/AVE]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "9410",
            "description": "ANGITIL SR capsules 120mg [CHIESI]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "9437",
            "description": "PLENDIL extended release tablets 5mg [ASTRAZENEC]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "9485",
            "description": "HYPOLAR RETARD-20 modified release tablet 20mg [SANDOZ]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "9553",
            "description": "SLOFEDIPINE XL modified release tablet 60mg [WINTHROP]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "9569",
            "description": "verapamil hydrochloride modified release tablet 120mg ",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "9573",
            "description": "SLOFEDIPINE XL modified release tablet 30mg [WINTHROP]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "9670",
            "description": "MOTENS tablets 4mg [BOEH INGL]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "9708",
            "description": "diltiazem 24 hour modified release capsules 120mg ",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "9723",
            "description": "CALCICARD CR controlled release tablet 90mg [IVAX]",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          },
          {
            "code": "9750",
            "description": "nifedipine 24 hour modified release capsules 60mg ",
            "attributes": {
              "Coding System (CPRD_product_code)": "CPRD_product_code",
              "Entity type": "res9: ca_channel_blockers",
              "Category": "drug"
            }
          }
        ]
      }
    ],
    "status": 2,
    "doi": "https://doi.org/10.48533/2anm-q563",
    "is_deleted": null,
    "publish_status": 2,
    "owner": "ieuan.scanlon",
    "template": {
      "id": 1,
      "name": "Clinical-Coded Phenotype",
      "description": "Phenotype definitions that are based on lists of clinical codes, or algorithms using clinical codes.",
      "version_id": 1
    },
    "versions": [
      {
        "version_id": 1006,
        "version_name": "Calcium Channel Blockers",
        "version_date": "2021-10-06T16:22:32.366527Z",
        "is_published": true,
        "is_latest": true
      }
    ]
  }
]