Phentermine
"Starting taking this 4 years ago. Lost 20 lbs.  It works but if u take it too long you have terrible side effects. Severe dry mouth, bad breath, wired, can't focus, constipation. I mentioned to the Dr the side effects and he said he's never had anyone complain about any negative side effects. I also asked if I should only take the medication for a certain period of time and he said no. I guess he got his money so he didn't care.  I just went off it and have gained about 8lbs back but that's because you fall hard. You are tired all the time. Like I said it works but I think I will try the eating healthy and exercise."