Topiramate
"I started taking topiramate for my severe headaches and migraines, and it was very effective in that way. 
My only complaint is the DRASTIC weight loss. I went from 125 pounds to 98 pounds and I looked awful! I became pregnant with my second child and went off the medication, and I experienced extreme panic and a feeling I can only describe as a “pre-seizure” feeling which made me spiral into panic attacks. I gained 50 pounds during my pregnancy and after having my child, went back on topiramate. Not long after, I was down to 98 pounds again. No thank you!! I am now off the medication and a healthy 120 pounds again. I can’t say that it wasn’t extremely effective, however."