Proscar Finasteride tablets What do finasteride tablets do?FINASTERIDE (Propecia(R), Proscar(R)) can reduce the size of the prostate gland in men with benign prostatic hyperplasia (BPH). The prostate is a part of the male reproductive system that produces a milky fluid for sperm. Over the age of 50 most men develop an enlarged prostate. As the prostate gets bigger it can restrict the flow of urine. Finasteride can help to reduce symptoms caused by BPH such as a weak or interrupted urine flow; a feeling that the bladder is not completely empty; a need to pass urine more often, especially at night; an urgent feeling that you must pass urine right away; a delay or hesitation when you start to urinate. Finasteride is also used for the treatment of certain types of male hair loss. Finasteride is not for use in women.