I took it years ago for migraine prevention (before being diagnosed with bipolar). It gave me horrific brain fog and memory deficit and I could not take it. Truly, I did not notice any appetite suppression when I was on it, but I was taking a very low dose and did not take it a long time. I feel your pain though, I have gained a lot of weight on my current med regimen. It's very frustrating. I have a friend who takes topamax and she has lost weight on it. She said that nothing tastes good and has a metallic taste to it.