<prompt> The following statements regarding finasteride are true exceptIt is used in the medical treatment of benign Prostatic hyperophy BPHImpotence is well documented after its useIt blocks the conversion of dihydrotestosterone to testosteroneIt is a 5 -alpha reductase inhibitor  <response>: .Finasteride, is used for the treatment of benign prostatic hyperplasia male pattern baldness. It is a 5a-reductase inhibitor; 5a-reductase, an enzyme, conves testosterone to dihydrotestosterone DHT option 3 its give otherway round Adverse affects include increased risk for impotence, erectile dysfunction, decreased libido, and ejaculation disorder for the first year of treatment. 