Finasteride
"Hi guys. I'm 30 years old, and have been slowly receeding and balding for about 6 years. I'd say I've lost and inch and a half from my hairline, and my crown has thinned alot. Not quite a bald patch, but definitely thinning out. I read about propecia a couple of years ago, and the horror stories put me off, despite the fact that I REALLY want to keep my hair. A workmate pointed out how thin I am on top a couple of weeks ago which gave me a kick up the arse. I have been on propecia for a two weeks now, and my hair loss has stopped already! When I showered before, my hands would have at least 30 hairs on them, now 1 or 2. I was terrified of the sexual side effects, but I can honestly say I've felt next to none (very slight testicle ache)."