I was on it before and I had lots of loss of cognitive function. I had to go off, once I was off and it was out of my system, I was fine. I wasn't on it long. There are lots of other preventive meds out there, I really suggest getting off of it and going on a different one. It's not worth loosing control over your mind.

I also call it “Stupamax” for those same reasons. I’ve been taking it since I was involved with the clinical trials for migraine. I tapered down from 200/day to 50/day and my memory/words have come back to an extent. I still take it for its prophylactic value

It’s been a long time since I tried topamax but I had to stop taking it for the reasons you listed. I couldn’t remember things I knew that I know. I couldn’t think of words, and just overall felt dopey. Later I was told that a nickname for topamax is “dopamax” for that reason.

I lose nouns. Now it's thingy. I have to write more things down rather than recall them. I started on Topomax due to seizures. It was the only med that could control them, so I use sticky notes and use non words. Beats a seizure and it sure beats a migraine. It is not a matter of lowered intelligence, it is a slower processing speed. If you can deal with a slower computer you'll be fine. I would, however, consult my doctor about my concerns.

I am not sure if is the Topamax but I do take and I have had to quit my job due to my headaches but I have noticed so problems with thought processes being slow, forgetting dates and appointments and with work I was having a hard time with follow through. Thanks for asking this question I am going to ask my doctor about it.