Flunarizine Dihydrochloride is precisely formulated to avoid the chance of migraine attack. This type of medicine should not be utilized for the treatment, when headaches that have already started. It aids by reducing the frequency of migraine attacks and, to a small extent, the severity of the attacks. The effect of Flunarizine Dihydrochloride may not be seen for several weeks. Don't stop taking it because of lacking of effect within the first six to eight weeks.