Women and Sex: Can a Testosterone Spray Rev Up Your Lagging Libido?

If you’re a fan of Desperate Housewives or Sex and the City, this may come as a bit of a shock: A large chunk of women in their 30s and 40s aren’t obsessed with finding a hot new lover; they’re worried about a lack of interest in sex with their current partner—or anyone else, for that matter.

As many as one in four women of any age report sexual dissatisfaction, and when it comes to middle-aged women, one survey found that 42% to 68% said they never or rarely experience sexual desire. Yikes!

So on behalf of women everywhere, let’s say thank you to the researchers and their guinea pigs who recently tested a testosterone spray as a possible remedy for women ages 35 to 45.

Although testosterone is thought of as a "male hormone," women do produce the hormone in their ovaries and adrenal glands. While estrogen production starts to plummet around the time of menopause, testosterone declines much more slowly. Can testosterone help you get your mojo back?

To find out, a team led by Susan Davis, MD, PhD, of Monash University in Australia, tested three doses of an experimental testosterone spray (not yet FDA approved, so you can’t buy it) against a placebo spray in 260 women.

None of the women had undergone menopause, and all had at least one sexual "event"
per month, either alone or with a partner. However, they had all experienced a decline in sexual satisfaction in recent years that concerned them (and had relatively low testosterone levels).

The good news is that all the women had more satisfying sex during the 16-week study. But studies like this often yield murky results, and that’s the case here. It’s not clear if the spray had anything to do with it. Only women taking the medium dose of testosterone had more events per month (0.8 events to be exact) than placebo users, while those taking the high and low doses had the same amount of satisfying sex as the placebo users. In other words, just being in the experiment may have  cause the "more
satisfying" result.

"My take-home message from that study was that there’s no evidence now of useful benefit from testosterone in premenopausal women. That was the situation before the study, and that’s still the situation," said Rosemary Basson, MD, director of sexual medicine at the University of British Columbia, who also wrote an editorial published with the study in the Annals of Internal Medicine.

Dr. Basson is concerned about the lack of safety data on testosterone; it’s unclear if—like estrogen—it will increase the risk of certain cancers. And an accidental pregnancy while taking testosterone is a very bad idea. It can cause the fetus to develop ambiguous genitalia, or genitals that are somewhere between male and female. One woman in the study had an unplanned pregnancy, but luckily she was in the placebo group and had a healthy baby.

Another potential drawback? Unwanted body hair (hypertrichosis).
At the highest dose, 28% of women had hair growth—often at the spot on their belly where the spray was administered.

Experts
recommend that women who are worried about their sex life take stock of their mental health (depression is a classic mood-killer) and their relationship with their partner.

"Desire or lack thereof is the canary in the coal mine and tells you something is wrong but doesn’t tell you what is wrong," says Andrew Goldstein, MD, author
of the book Reclaiming Desire. "Women can have decreased desire for many reasons. They can have decreased desire because their partner is a jerk. Testosterone isn’t going to make their husband vacuum, take out the garbage, or pick the kids up from school."

However, he thinks testosterone could have potential for some women, and the drug deserves more study.

"Whereas it may be natural to have a decreasing sex drive, that doesn’t mean it’s necessarily desirable," he says.