Using testosterone doesn't make Viagra work better: study

There was also no difference between the two groups on measures of sexual desire, orgasm and frequency of intercourse.

Spitzer told Reuters Health his team didn't look at the effects of testosterone without Viagra, and it's possible the gel would boost sexual functioning compared to no treatment.

In addition, testosterone may have other beneficial health effects, such as on strength and body composition.

Other experts said the study didn't mean that testosterone wouldn't help some patients. It doesn't mean that if the individual has either symptoms of androgen deficiency or hypogonadism (low hormone production from the testes) that those wouldn't get better with testosterone, said Alvin Matsumoto, a geriatrician from the University of Washington School of Medicine and the Seattle VA Puget Sound Health Care System, who wasn't part of the study.

What you don't know is if you don't respond significantly to sildenafil and you have low testosterone, whether testosterone wouldn't help in addition.

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