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For Patients with Erectile Dysfunction, Treatment with Oral Medications Demonstrates Significant Improvements in Sexual Intercourse and Erectile Function

American College of Physicians issues clinical practice guideline on the benefits and risks of PDE-5 inhibitor drugs used to treat patients with ED

Video: Lead author Amir Qaseem, MD, PhD, MHA, FACP, discusses the guideline

PHILADELPHIA, October 20, 2009 -- The American College of Physicians (ACP) today issued recommendations for the treatment of erectile dysfunction (ED). ACP, the nation's largest medical specialty organization and second-largest physician group, strongly recommends that physicians initiate therapy with an oral phosphodiesterase type 5 (PDE-5) inhibitor in men who seek treatment for ED unless they have a contraindication to PDE-5 inhibitors, such as nitrate therapy.

As for which PDE-5 inhibitor to use, ACP recommends that physicians base the choice on the individual preferences of patients including ease of use, cost of medication, and adverse effects profile.

"The evidence is insufficient to compare the effectiveness or adverse effects of different PDE-5 inhibitors for the treatment of ED because there were only a few head-to-head trials," explained the lead author of the guideline, Amir Qaseem, MD, PhD, MHA, FACP, senior medical associate at the American College of Physicians.

The guideline authors analyzed evidence gathered from 130 randomized controlled trials that evaluated oral PDE-5 inhibitors alone or combined. Treatment with a PDE-5 inhibitor resulted in statistically significant and clinically relevant improvements in sexual intercourse and erectile function in patients with ED, regardless of the cause (e.g., diabetes, depression, prostate cancer) or baseline severity. The magnitude of benefit increased with severity of ED.

Overall, the evidence showed that PDE-5 inhibitors were relatively well-tolerated and were associated with mild or moderate adverse effects, such as headaches, flushing, upset stomach, and runny nose.

ACP does not recommend for or against routine hormonal blood tests or treatment in the management of patients with ED because the evidence is inconclusive about the effectiveness in patients with low testosterone levels. Physicians should individualize decisions to measure hormone levels based on the clinical symptoms (e.g., decreased libido, premature ejaculation, fatigue, etc.) and physical findings (for example, testicular atrophy, muscle atrophy) that suggest hormonal abnormality.

"Hormonal Testing and Pharmacologic Treatment of Erectile Dysfunction: A Clinical Practice Guideline from the American College of Physicians" appears on the Web site of Annals of Internal Medicine and will be printed in the November 3 issue.

About ED

ED can be a persistent inability to achieve or maintain penile erection sufficient for satisfactory sexual performance, an inconsistent ability to do so, or a tendency to sustain only brief erections. These variations make defining ED and estimating its incidence difficult. Estimates range from 15 million to 30 million in the U.S., depending on the definition used. Estimates from the National Health and Nutrition Survey suggested that the cost of treatment of ED in the U.S. could reach $15 billion if all men sought care.

ED is a common disorder of male sexual function and affects all age groups especially individuals with advanced age, diabetes, vascular diseases, psychiatric disorders, and possibly hypogonadism (low testosterone). ED may be caused by chronic diseases such as obesity, hypertension, dyslipidemia, cardiovascular disease, or smoking; medications; psychosocial factors; or hormonal abnormalities.

ED lasting for three months is considered a reasonable length of time to warrant evaluation and consideration of treatment.

About the American College of Physicians
The American College of Physicians is the largest medical specialty organization and the second-largest physician group in the United States. ACP members include 129,000 internal medicine physicians (internists), related subspecialists, and medical students. Internists specialize in the prevention, detection, and treatment of illness in adults. Follow ACP on Twitter and Facebook.

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