Let's put it this way those of us who have to take anti convulsant's because of epipilepsy are well known for trying to find something else to control our seizures, we are not known for voluntarily saying we would love to take an anti convulsant, at least all on the know ones on the market just about every one has an impact on cognition although i took topamax for awhile and didn't have much problem but an eagle eyed pharmacologist took me off of it because I also take mirtazapine and oxcycodone and all three of them compete for the same enzyme to metabolize them andvthere is no why I am getting maximum therapeutic value out of all three unfortunately the new drug she put me on didn't control my seizures, like it should have and they had to put me in a coma to stop my seizures for a week well they got Me on something else.