Used primarily in the treatment of benign prostatic hyperplasia (BPH), it helps reduce the size of the prostate gland, improving urine flow and decreasing the risk of acute urinary retention. It works by inhibiting the conversion of testosterone to dihydrotestosterone (DHT), a hormone involved in prostate growth. Also prescribed off-label for androgenetic alopecia (male pattern hair loss), it shows effectiveness in promoting hair regrowth and preventing further hair loss due to its potent suppression of DHT levels.