some backgrougnd info so people can advise me. I starting using the phentermine after i stopped using cocaine after 15 years and gained a lot of weight. dr. 1st prescribed to loose weight because he did not know I was a recovering addict, and wala plecibo! I feel all i did was trade the illegal drug for a legal one, although i have purchased phentermine off the internet for years. the kick in the butt, I got fat again, I am on jenny craig finally and helping a little, but still can't seem to move without popping the little white and blue pill.