Topamax
"I was prescribed topamax as a migraine preventative & had a terrible experience from it. Not only did it fail to prevent migraines, it made me develop kidney stones. I had never had one before using this awful drug,which also made me feel constantly tired & forgetful. The worst part is that once you kidney stones your body is more susceptible to getting them again & you most certainly will. For anyone unfamiliar with the pain from kidney stoned I can assure you it is sheer agony. And even worse is the hellacious migraine that lasts for days that comes along with it. It's so bad that even medicines like imitrex won't work on it. There are blogs & websites which tell of the awful experiences people have had with this drug. Beware."