The story
From dil- (“vasodilator”) + -tiazem (“alteration of benzothiazepine”).
Etymology from Wiktionary, CC BY-SA 4.0.
diltiazem
Today it means: A benzothiazepine drug, a potent vasodilator used to treat hypertension, migraine, angina pectoris, and some types of arrhythmia. Full definition →