Submitted by György Chityil ... on Fri, 01/19/2018 - 20:25 Hierarchy: NounDescription: {{pharmacology}} A class of drug used to treat hypertension and also angina and arrhythmia.Ngram: calcium channel blockerNgram Text: calcium channel blockerSource: WiktionaryIssue: 0Wiktionary tag: pharmacologyNgram Count: 3