I’ve been on topamax for over a year now and the dopamax effect was major to begin with but it did get better. I don’t remember how long it took though. I have to admit though I still have moments where I wonder if I’m getting early onset dementia but 90% of the time I’m able to function normally cognitively. It has so many benefits for me physically and mentally so I don’t want to give up on it. I hope you have the same easing of the dopamax effects soon too!