Clomiphene citrate rescue of spermatogenesis in men with infertility while remaining on finasteride: A case report Finasteride is a selective inhibitor of type-2 5-alpha reductase enzyme, preventing the conversion of testosterone to dihydrotestosterone (DHT). Finasteride is used as an oral drug for the treatment of benign prostatic hyperplasia at the 5 mg/day dose and is also used for the treatment of androgenic alopecia, or male pattern hair loss, at a dosage of 1 mg orally.
