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calcium blocker

noun Pharmacology.
  1. any of a group of drugs that prevent the influx of calcium into excitable tissues such as smooth muscle of the heart or arterioles, used in the treatment of angina, hypertension, and certain arrhythmias.
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Also called calcium channel blocker.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

British Dictionary definitions for calcium channel blocker

calcium channel blocker

noun
  1. any drug that prevents the influx of calcium ions into cardiac and smooth muscle: used to treat high blood pressure and anginaAlso called: calcium antagonist
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Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012