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Cialis to Treat Benign Prostatic Hyperplasia Approved by FDA

Author: U.S. Food and Drug Administration

Published: 2011-10-13

Synopsis and Key Points:

US FDA approves Cialis tadalafil to treat signs and symptoms of benign prostatic hyperplasia BPH and for treatment of erectile dysfunction ED when the conditions occur simultaneously.

Main Digest

The U.S. Food and Drug Administration approves Cialis (tadalafil) to treat the signs and symptoms of benign prostatic hyperplasia (BPH), a condition in which the prostate gland becomes enlarged, and for the treatment of BPH and erectile dysfunction (ED), when the conditions occur simultaneously. Cialis was approved in 2003 for the treatment of ED.

Common symptoms of BPH include difficulty in starting urination and a weak urine stream; a sudden urge to urinate; and more frequent urination including at night.

The severity of symptoms of BPH can be measured using the International Prostate Symptom Score (IPSS). In two clinical trials, men with BPH who took 5 milligrams (mg) of Cialis once daily experienced a statistically significant improvement in their symptoms of BPH compared to men who were treated with placebo. The trials based their findings on a reduction in total IPSS scores.

In a third study, men who experienced both ED and BPH and who took 5 mg of Cialis once daily had improvement in both their symptoms of BPH and in their ED compared to men who were treated with placebo. The improvement in ED was measured using the Erectile Function domain score of the International Index of Erectile Function.

"BPH can have a big impact on a patient's quality of life," said Scott Monroe, director of the Division of Reproductive and Urologic Products in the FDA's Center for Drug Evaluation and Research. "A large number of older men have symptoms of BPH. Cialis offers these men another treatment option, particularly those who also have ED, which is also common in older men."

Cialis should not be used in patients taking nitrates, for example nitroglycerin, because the combination can cause an unsafe decrease in blood pressure. Also, the use of Cialis in combination with alpha blockers for the treatment of BPH is not recommended because the combination has not been adequately studied for the treatment of BPH, and there is a risk of lowering blood pressure.

The FDA has approved eight other drugs to treat symptoms of BPH: Proscar, (finasteride), Avodart (dutasteride), Jalyn (dutasteride plus tamsulosin), and the alpha blockers: Hytrin (terazosin), Cardura (doxazosin), Flomax (tamsulosin), Uroxatral (alfuzosin) and Rapaflo (silodosin).

Cialis is manufactured by Indianapolis-based Eli Lilly and Co.

For more information:

Approved Drugs: Questions and Answers - www.fda.gov/Drugs/ResourcesForYou/Consumers/ucm054420.htm

The FDA, an agency within the U.S. Department of Health and Human Services, protects the public health by assuring the safety, effectiveness, and security of human and veterinary drugs, vaccines and other biological products for human use, and medical devices. The agency also is responsible for the safety and security of our nation's food supply, cosmetics, dietary supplements, products that give off electronic radiation, and for regulating tobacco products.

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