calcium blocker
any of a class of drugs that block the flow of the electrolyte calcium (either in nerve cell conduction or smooth muscle contraction of the heart); has been used in the treatment of angina or arrhythmia or hypertension or migraine • Syn: calcium-channel blocker • Hypernyms: medicine, medication, medicament, medicinal drug • Hyponyms: diltiazem, Cardizem, nifedipine, Procardia, verapamil, Calan, Isoptin
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