I would never take diet pills again but I was taking Metabolife back in the mid 90's when they still had ephedrine and I lost 10 pounds, I then stopped taking them and another 30 came off on my own. I just used them to get the ball rolling. I never exercised, just lowered my calorie intake. Kept it off for years until my pregnancy.
My biggest issue has always been getting the ball rolling. My body likes to get stuck at a certain weight and won't move.