"after getting a blistering skin rash from lamictal, topamax was prescribed.  it did decrease my appetite- i went from 209 lbs back to my regular 135 which i hadn&#039;t been in 7 years. this took place in about 10 months.  at abt the same time i started taking it, i was rearended and suffered a mtbi and scored very low on my neuropsych exam. my old psychiatrist retired and the new psychiatrist is against topamax bc of the &quot;foggy&quot; side effects that are common.  now, a little over a year later, i feel ok abt this med considering the alternatives- wish there were better alternatives!"