Finasteride, found in FINCAR 5MG, is a type II 5-Alpha reductase inhibitor. It is used to treat the signs and symptoms of BPH in men. Benign Prostatic Hyperplasia (BPH; also known as enlarged prostate) is a non-cancerous growth of the prostate gland caused primarily by an increase in the body's production of a stress hormone called dihydrotestosterone (DHT).Disclaimer:For More Information Contact Your Physician