Thank you for posting your query.
Migraine is a chronic condition and requires long-term treatment.
I agree with you that Flunarizine
can cause drowsiness, sleepiness and weight gain.
In your case, topiramate
would be a preferred drug, as it has a side effect of weight loss
(which may be advantageous for you). Please discuss this with your neurologist
Wishing you good health,
Dr Sudhir Kumar MD DM (Neurology)
Senior Consultant Neurologist
Apollo Hospitals, Hyderabad