I think I said this somewhere else on this forum, but I have an acquaintance whose wife is experiencing memory loss after taking Topomax for migraine prevention. She’s not on the drug any more (I don’t know how long she’s been off it) and is still having the memory issues.
Also, I have a friend who is a PhD scientist who has done pharmaceutical research. I was talking to her one day about vestibular migraine and told her about some of the different drugs that are used as migraine preventatives. I mentioned nortriptyline and amitriptyline, Topomax, and calcium channel blockers. She said, “Stay away from the Topomax. It can cause all sorts of problems.”