Topiramate
"I've heard so much about topamax  and was given it for nerve pain I have heard that its infamous nickname is "dope-amax" which I find hilarious but have fortunately not experienced yet thank God! I have however, coined another nickname for it: "skinnymax" as I have been taking it one week and am wasting away on it! I have to make myself eat. My pain management doc put me on it because Lyrica and Depakote caused weight gain. I wasn't  fat to begin with. Just didn't want to go down that road. I'm currently on 25mgs bid. The only other side effect besides loss of appetite is mild drowsiness. I am 5'2 and last I weighed in at 115.  I haven't weighed but if I go below 105 I will have to stop. Still it is a great drug!"