Flunarizine is used to prevent migraine headaches. This medication helps to reduce the frequency of attacks and to a lesser extent the severity of attacks. Flunarizine does not appear to have an effect on how long attacks last. It should not be used to treat acute migraine headaches.
Drowsiness, weight gain, nausea, heartburn, dry mouth or anxiety may occur as your body adjusts to the medication. If any of these effects continue or become bothersome, inform your doctor. Notify your doctor if you develop: a skin rash, depression, muscle aches, tremor, difficulty moving, abnormal or uncontrolled movements (especially of the face or mouth). If you notice other effects not listed above, contact your doctor or pharmacist.