Sibelium (Flunarizine) is used to prevent migraine headaches with or without aura (warning signs that occur before the headache begins). This medication should not be used for treatment of acute migraine headaches (headaches that have already started).

Flunarizine to prevent migraine. Flunarizine has been used in medical practice for over 25 years. It was initially introduced as a medicine to improve blood flow and is a medicine known as a calcium channel blocker. It has been mainly used in the treatment of dizziness, vertigo and prevention of migraine.