I used to use phentermine/adipex a couple of years ago for weight loss. This weight loss medication is the best on the market. I eneded up losing about 35 to 40 pounds altogether over a 6 month period. I had so much energy daily. I have since stopped taking the medication because I was losing too much weight and my family was freaking out telling me how bad I was starting to look. However, I have only gained about 10 pounds max since then and thats because i've just been eating whatever and whenever I wanted too. Therefore, i'm thinking about going back on the phentermine to lose these 10 pounds and maybe a little bit more. Anyway, it's a great weight loss medication. The only bad thing about it is you have to get it from a doctor. You can't buy it over the counter unfortunately. Good luck everyone!