Prozac brought my sex drive down, but mine wasn't very high to begin with. I was at 40mgs, and I was on it for a little over a year. When I spoke with my doctor about it, he switched me to Wellbutrin. But everything affects everyone different. I thought Prozac was a pretty effective antidepressant. If I were you, I think I would wait to see what happens - and then if you decide the side effects are not worth the mood improvements you are getting, you could see about switching to something else?