I was on Wellbutin for about 9 months, It wasn't working. I switched to Celexa, I have only been on it for about 6 days. I can tell my appetite has increased. I did lose some weight with Wellbutrin, however, I don't think any amount of weight gain would be as bad as my anxiety attacks. I can tell the sexual affects are not good.
I was taking celexa for 4 years and it never gave me any weight and I was feeling very good while on it. However, it caused me sexual problems.