I don't agree with bobster on finasteride, but he's right on RU. It has a very good safety profile, and its metabolized into an extremely weak anti androgen with a short half life once it enters the blood. Even with continuous dosing of like 200mg a day you wouldn't have a significant amount of it build up in your system
where do you get this information though? For the record, i have nothing against RU, i just dont know how someone could run around saying RU is safe and then turn around and say propecia isnt, just doesnt add up to me. People report heart palpitations on RU. In finasterides case, the list of side effects are HANDED to us everytime we buy the pills.