methysergide

[ meth-uh-sur-jahyd ]

noun

, Pharmacology.

1. an ergot alkaloid derivative, C 2 1 H 2 7 N 3 O 2 , used in the prophylaxis and treatment of migraine and cluster headaches.

Word History and Origins

Origin of methysergide¹

1960–65; meth- + (l)yserg(ic) ( lysergic acid ) + -ide ( def )