diltiazem

[ dil-tahy-uh-zem ]
/ dɪlˈtaɪ əˌzɛm /

noun Pharmacology.

a white to whitish crystalline powder, C22H26N2O4S, used as a calcium blocker in the treatment of angina pectoris.

Origin of diltiazem

presumably from isolated and rearranged letters of the chemical name