I started taking Phentermine 30mg on 2/20/07. It didn't feel like it was working at first because I was hungry a lot still. Then I could tell it was working. After a month I had lost 9 pounds, now almost 2 months later I lost 20 pounds but now gained back about 2. I don't feel like the Phen is working anymore. It's only been two months. I also switched from 30 mg to 37.5mg. At first the Phen helped with cravings and everything now it doesn't. If I see sweets I want them, before I could turn them down. What can I do?? Is there something else I can take? I also take celexa. I am worried that I will just gain the weight back, and won't lose anymore.... Please help. Is there something else the Dr. can prescribe that might work???