Hi Started losing hair in the temples slightly around 3 years ago. Wasn't convinced I was actually 'balding', but I jumped on propecia anyways. Took it for 3 months. My hair stabilized. Get off it after the 3 months and all was good, but the thought of losing my hair kept nagging in the back of my head, so I got back on it. Been 3 months now and still my hair is still. I don't know if I have male pattern baldness or not, but if I do, then Propecia is working. I'm probably a good example of getting on medication THE MINUTE you think you could be losing your hair.