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Study: Testosterone May Not Treat ED

Researchers Say Testosterone Replacement Therapy May Not Be Helpful for Erectile Dysfunction
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WebMD Health News
Reviewed by Laura J. Martin, MD

Oct. 17, 2011 -- Many men may be taking supplements of the male sex hormone testosterone to improve their sexual function, but it may not be that helpful after all.

A new study of men 60 and older who had low or borderline low levels of testosterone showed that testosterone replacement therapy did not improve erectile dysfunction (ED) or their ability to achieve and maintain an erection, compared to a placebo gel.  

Men who used either a low dose or a conventional dose of testosterone gel showed no improvements in their sexual function during the course of the year-long study, compared with men who used placebo gel.

The findings were presented at the annual meeting of the American Society for Reproductive Medicine in Orlando, Fla.

"It appears that testosterone supplementation will not improve ED, though it may have other benefits on sexual function that were not evaluated with this data," says study researcher Lauren W. Roth, MD, an obstetrician/gynecologist at the University of Colorado in Denver, in an email.

Sexual function is one of many reasons that many men are turning to testosterone therapy. With a laundry list of promises from a boost in sex drive and more energy to an increase in muscle mass and mental acuity, testosterone therapy can be tempting for many men who want to feel and look younger than they do.

But, according to some experts, the hormone may be more harmful than helpful for some men.

"I am quite concerned about the rampant use of testosterone replacement therapy for very soft indications," says Rebecca Sokol, MD. She is a professor of medicine and obstetrics and gynecology and the director of the andrology program at the Keck School of Medicine of the University of Southern California in Los Angeles. "It is very much a buyer beware situation."

"We have to be very cautious about who we do and do not start on testosterone," Sokol says.

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