I Started taking adipex 04-13-09. Today is 04-25-09 and I have already lost 13 pounds. Basically in 12 days I have lost 13 pounds. It works so great. I have not experienced any side effects or anything. I take a half a pill at 10am and a half a pill at 3:00pm. I walk for 20 minutes a day. Adipex really gives me a boost of energy. I LOVE IT!!!!!