) is a prescription medicine that has been licensed as treatment for an enlarged prostate
. An enlarged prostate is also known medically as benign prostatic hyperplasia, benign prostatic hypertrophy, or BPH
Proscar is manufactured by Merck & Co, Inc. Generic Proscar
is made by several manufacturers.
Proscar works by blocking the conversion of testosterone into DHT (dihydrotestosterone), which decreases the amount of DHT in the body. Since DHT is important for enlargement of the prostate, using this drug to decrease DHT levels can treat an enlarged prostate. In most men, Proscar can help shrink the prostate, helping to relieve their enlarged prostate symptoms
Several studies have looked at how well Proscar treats an enlarged prostate. In particular, there has been one large study that examined several of the effects of the drug for men with BPH, with the following results.