Preventive Propecia?

I have read many articles and questions on Propecia, but one think I never see is if propecia can be used as preventitive measure. For example Im 22 years old and still have a pretty thick heas of hair with a small receiding hairline, but my father is bald and so was my mother’s father so it is more then likely I will also go bald, so I was mainly wondering, is it ever to early with the hair loss stage to start using propecia even if I’m not sure if I will actually go bald.

You should not use Propecia (finasteride 1mg) for preventive measures. It’s a prescription medication, and you’d use it after you are examined by a doctor who can diagnose you with androgenic alopecia, prescribe it to you, and discuss all its risks and benefits. You have to know what you are treating first.