"i was prescribed topmax for migraines but i have had weight loss being on it. i take 50mg twice a day. i had the same problem with the pop it tasted flat (still have). i had (have) the tingling in certain body parts and the tired feeling at first. i started taking them july 2015 and by january 2016 i have lost 40lbs. i was 190 and am now 147 and going down every day! the only thing that i have changed is i drink water. i eat whatever i want some days i eat more some days less. i used to go through a 12 pack of mt dew a day. it was hard at first but i honestly don&#039;t mind now. because when i look in that mirror every morning its worth drinking that bottle of water."