Topiramate
"I've been on Topamax for 2 weeks now after switching from Elavil. Now I'm seriously questioning that decision despite the problems Elavil caused me. The insomnia is outrageous. I have to set an alarm to take my morning dose at 5 a.m. so that my evening dose can be taken around 3 p.m. This way it's effects have kind have faded off by bedtime and with the help of some prescribed sleeping pills I'm lucky to get a tiny bit of sleep. Of course, along with that I have tingling, slight numbness (not enough to even complain about), dizziness, decreased appetite, taste aversion, and weight loss of course. I haven't had too many experiences with confusion yet. On a positive note, my migraines haven't returned."