What is "flunarizine"

n. A calcium channel blocker.

Flunarizine (trade name Sibelium and many others) is a drug classified as a calcium antagonist. It is effective in the prophylaxis of migraine, occlusive peripheral vascular disease, vertigo of central and peripheral origin, and as an adjuvant in the therapy of epilepsy. It has been shown to significantly reduce headache frequency and severity in both adults and children.

Flunarizine is not available by prescription in the U.S. or Japan. It was discovered at Janssen Pharmaceutica in 1968.