Hi Dr. Rassman,
I’m a 30-year-old male who recently started taking Propecia. My question is, if there are any side effects, how long until the side effects would show up? I haven’t noticed anything, but believe your answer would be a good piece of information to have, regardless.
If a man on Propeica is going to get a decreased sex drive (one in a hundred) they should see that side effect in the first couple of weeks. If you have had no sexual side effects, welcome to the majority of men who have taken the drug daily for years.