How Rare Are Permanent Side Effects from Propecia/Finasteride?

The science papers suggest that the sexual side effect (the focus of most men on this site) are less than 2% and are reversible if stopped early. The nocebo effect is much higher as young men bring on their sexual side effects by obsessing over taking the drug, and reading forums that suggest that this is a common occurrence. The greatest concern of most young men is the condition called Post Finasteride Syndrome which if real, may reflect a 1% risk at most. There is controversy over the existence of this condition within the medical community, but it is nevertheless important for any man considering this drug