Topiramate
"I've been using Topiramate for over a month now. I'm 50 years old, female and have hypothyroidism taking 150mcg of Synthroid daily. I suffered from increasing frequency and duration and intensity of migraines. In the past year the Immitrex wasn't working as it used to so my doctor prescribed Topiramate. I'm up to 50mg per day. The only side effect I've had is mild dry mouth. And no migraines. None. I went from 2 or 3 a week to ZERO migraines in over a month. I am very happy with this medication. The only reason I gave it a 9 is because I'm a tough scorer.  :)"