Finasteride is a 5-alpha reductase inhibitor prescribed primarily for male pattern hair loss and benign prostatic hyperplasia (BPH). By reducing levels of dihydrotestosterone (DHT), it helps preserve scalp follicles and ease urinary symptoms from prostate enlargement.
Its ability to target hormonal pathways that contribute to hair thinning and prostate growth makes it relevant in discussions of healthy aging. However, possible side effects include reduced libido or mood changes, which should be balanced against its therapeutic benefits.
