Medications effect everyone differently, so just because someone does or does not react a certain way... it does not mean much... but my side effects with topamax were so awful, I cringe now when someone mentions taking that stuff. But that's just me... and I was taking them for the rapid cycling bi polar that I do not have. Oh the joys of the misdiagnosis... If it counts for anything, aggressive behavior was not on my personal list of topamax complaints, though.