[connicpu]

Finasteride is a 5-alpha-reductase inhibitor. Basically, it works by preventing the conversion of Testosterone into its more potent form, Dihydrotestosterone. Without DHT a lot of the effects of Testosterone, including maintaining your libido, are significantly reduced. I was on it for about a year to speed up my hair recovery and it definitely worked wonders, but that was along with replacing my testosterone with estrogen, so the "side effects" were actually the intended effects in my case.