Definition of diltiazem
: a calcium channel blocker C22H26N2O4S used especially in the form of its hydrochloride as a coronary vasodilator
Origin of diltiazem
probably from International Scientific Vocabulary dilator + benzothiazepin, tricyclic compound structurally similar to benzodiazepine + -m (as in diazepam)
First Known Use: 1975
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