Is Propecia Really safe?

[Henrique]

Hi.

I would like to make a simple question. They said that the side effects appear on the begginning of the treatment. But when more? In the first month? In the first two weeks?

I´ve been on finesteride for about 4 months. In the beggining I felt no side effects.When I say beggining I say in the first 2/3 months. But now I think I think I feel a reduction of my sexual desire. I don´t know if it happenned because of a failed sexual experience and the worries about it or if it happened because of the drug. The fact is that the more I think about it the less I felt desire. Anyway they said that the effects when they happen they go away after a few time. Is that true?

My last worry is how can I know that this drug is or is not affecting me? Can I do a simply blood test?

I hope you can help me.