Phentermine. Its a perscription diet med, but there are a thousand places on the net to get it. It works, almost too good. I've been on for a week now, and I almost have to remind myself to eat, best of all it controlls my craving for sweets. It's not a speed so you dont get that edgy feeling like you do when your on a speed type med. It does make you thirsty as hell though.