Topamax gave me brain fog. I would get up to get something and couldn't remember what it was I was going to get. This didn't happen once or twice but continually. Finally decided I had rather live with the migraines than the side effects.
Topamax - not a fan. Slowly increased over a month to 100mg a day, side effects were not good for me. Pros: Reduction in migraine intensity, weight loss. Cons: Everything tasted funny, dry mouth and I was very irritable and aggressive. NOT my normal personality. lol. My family brought it to my attention as gracefully as possible and I weaned off it.
Sorry but have to say this. I HATED topamax. I had the worst migraines on it! I drank about 80 OZs of water, I was consistent on taking it, it just did nothing, but make things worse. I really hope it helps you, just wanted to be honest.
I take 150mg of topamax a day. I find it helps A LOT for the OTHER headaches! I never had migraines or whatever you call them ..headaches until they started messing with my noggin!
I had constant 5 min headaches with just about every move I made and other garbage to go with it! Post surgery a lot of symptoms left and still have some 5 min headaches.
The Topamax has helped keep those other headaches down a lot! However we have a nickname for it here in my home! We call it Stupamax! It really causes a brain fog! I have a lot of moments of loss of memory and this is caused from the topamax.
Other odd things: Tingling in hands and feet, I can't feel fizz in soda, weight loss and memory loss.