My best friend(like sister to me) was on trileptal and her neralogist put her on topamax..He weaned her off of trileptal while he put her on topamax.. She was only having petit mal's and when he put her on topamx she started to have really bad grand mal's, and she got really sick, she couldn't stand and she didn't kno where she was or anything.She also was seeing double and started having more petit mal's (along with the new grand mal's..She had never had a grand mal before she was put on topamax)
she stopped taking the topamax with out her neralogist or her mother knowing( she is 16) and all things went back to normal she could see straight, she could pay attention more... On topamax she was "out there, dayzed didnt know what was going on" but when she stopped all was normal
but after about a month her mom found out and her neralogist told her that she could get in big trouble and he could refuse to treat her so she had to start taking them again...
But thats my out look on topamax, and im not a doctor but yeah...