migraine prevention
"I used to be on this when it was brand-name, and now I'm on it as a generic. I've found pros and cons with each. With the brand name, I felt like it worked better, but it gave me horrible problems with confusion. I would drive home from work and sometimes not even remember the drive home. I felt completely drugged. 
When the generic came out, I was switched to it. It didn't make me loopy like the brand name did, but I didn't think it worked as well either. I get more migraines on it by a lot than I got on brand name Topamax and I think I'm on the highest dose. I take one 200 mg pill in the morning and one 200 mg pill at night."