Tyler:
I was on propecia for a year. Like you I was trying to maintain the hair I had and maybe regain some of the lost ones mainly over the forehead. Like anyone else taking this type of medication I was very worried about what it would do for my erections and libido.
For the fist two weeks, both of them diminished. That drove me nuts and almost quit the stuff. However, right after that came a period where I was very busy and had no time to think about it and my erections, night woods and libido came back. My wife who teased me at fist about possible side effects was very pleased and so was I.
Definetly it was a psychological thing, I was so worried about what might happen that it actually did.
Nonetheless, I would check with a doctor about dossage, it is clear that different people have different results.
In my case, I finished my year of treatment with none whatsoever.
This is simply to clearify that drugs that don’t work for you are not necessarilly poissonous like is has been implied in many replies.
I agree though that potence is more important than hair, which does not mean that hair does not help!!!