What Is PT-141 and Does It Work for Women's Libido?

Yes. PT-141, sold as prescription Vyleesi, raised desire a little and lowered distress about low desire in premenopausal women with HSDD in two trials. The average benefit was modest, and approval covers only that group. It is taken as needed before sex, and nausea, flushing and headache are common.

What is PT-141 and who is it actually for?

PT-141 is bremelanotide, sold as Vyleesi. It turns on melanocortin receptors, which are brain signals involved in sexual desire, and it does not work through hormones. prescribing information

The FDA approved it in 2019 for premenopausal women with acquired, generalized HSDD. That means low desire that developed after a period of normal desire, happens across partners and situations, and causes distress. Low desire due to a medical or mental health condition, relationship problems, or a drug or medicine falls outside this diagnosis. FDA label patient information

Postmenopausal women, men, and use for better sexual performance fall outside the approval. The trials enrolled only premenopausal women, so the approval reflects who was studied.

Does it improve desire?

In two identical 24-week trials, women using bremelanotide reported a small average rise in desire and a small average drop in distress about low desire compared with women using placebo. Both differences met the statistical bar, but the average change was modest. The trials measured desire scores and distress, not how any one woman will respond. RECONNECT trials

The patient information sets an 8-week check. Women should tell their provider if HSDD symptoms have not improved after 8 weeks of use. patient information

How is it taken and what are the downsides?

You inject one dose under the skin of the abdomen or thigh at least 45 minutes before sexual activity. You should not take more than one dose within 24 hours or more than 8 doses within a month. prescribing information

Nausea, flushing and headache were the most common side effects in the trials. Each dose can also briefly raise blood pressure and lower heart rate, and those changes usually resolve within 12 hours. Women with uncontrolled high blood pressure or known heart disease should not use it. FDA label

Skin darkening occurred in about 1% with repeated use. extension summary