I'm a severe cluster headache sufferer and I take 400mg topamax daily. Side effects
? Paranoia, tingling
sensation in the legs/hands, shortness of breath, somnolence, loss of appetite, confusion, fatigue...
BUT, I'm pain-free. And trust me it's the first time since 17 long years. And nothing hurts more than a cluster headache. Topamax is a deal with the devil. It'll fix your problem, but it'll bring some other stuff. So, my wife has to drive me around, and I have to be more careful.