Hi, I've been on Prozac for 2 years now. I became anorexic 2 years ago and I was put on it to help treat bulimia too. I went from 5'5, 88 lbs-130 lbs while in hospital. Since out of the hospital, I eat average and healthy and excersize and I still gained 30-40 lbs. My physiatrist wants to stop the Prozac since I am no longer bulimic or anorexic or depressed. Right now I'm on 40 mg. He wants me to cut down to 20 mg for 2 weeks then 10 mg for one month. How long until I loose the weight and go back down to 130-140? I am also on birth control. Thanks.