Topiramate
"After reading all of the horrific side effects (hair loss being the big one for me) I decided to look up the rate of this side effect. The answer? 2%
Take all the bad reviews with a grain of salt, knowing it's typically what drives a person to write a review in the first place. Onto the details

I'm taking Topirimate 75mg for migraines (occipital neuralgia). I was instructed by my doctor to take my medication in the evening, that was a majority of the "foggy" feeling will be while I'm sleeping. I do notice I begin to start getting a little disoriented, but that's completely gone by morning. I stopped drinking since the risk of kidney stone is (slightly) higher. I make sure to drink more water, and Gatorade occasionally."