I have been on prozac for 3 years and have not had any trouble sleeping. I didn't gain weight either. I was gaining a lot of weight due to my antipsychotic, but when I started prozac I stopped gaining it. I have an increased sex drive which drives me nuts as I am a virgin and single and my personal religious views are against sex outside of marriage. So as others have said everyone experiences different side effects.

Prozac helped me be less depressed originally. My pdoc just increased my dose this week to help with compulsive behavior...we'll see if it works.