U.S. Food and Drug Administration Grants Approval to Flibanserin, a Desire-Boosting Medication for Postmenopausal

Older couple in an embrace
Flibanserin, often called “the women's Viagra,” is now cleared for treatment to combat low sex drive in females beyond reproductive age.
  • Regulators broadened the indication of Addyi, a daily drug to address hypoactive sexual desire disorder (HSDD) in women, to encompass postmenopausal women up to age 65.
  • The approval will open up additional therapeutic avenues for this demographic, but specialists warn that treating low libido requires a “holistic method.”
  • Addyi is known to have potentially dangerous interactions with drinking that may result in fainting, so abstinence from alcohol is strongly advised.

The federal agency expanded its approval of a oral treatment to manage hypoactive sexual desire disorder (HSDD) in females to cover postmenopausal women up to 65 years old.

Before this week's decision, the drug, Addyi (flibanserin), was exclusively cleared to treat hypoactive sexual desire disorder (HSDD) in premenopausal females.

This medication was originally authorized by the FDA in 2015, following a protracted and controversial review process.

Regulators had earlier turned down the drug on two separate occasions, in 2010 and 2013. In both cases, the FDA expressed reservations about safety, efficacy, and an unfavorable risk–benefit profile.

Currently, Addyi is the exclusive pill authorized for hypoactive sexual desire disorder, though the FDA cleared Vyleesi (bremelanotide), an as-needed injectable treatment, in two thousand nineteen.

The founder and CEO of the pharmaceutical company of flibanserin praised the FDA’s action to expand the drug’s approval, calling it a “milestone” in understanding and prioritizing women's sexual wellness.

Additional OB-GYNs were supportive for the decision.

“Previously, options were limited for me to recommend because everything was for women who were premenopausal and not postmenopausal,” said an OB-GYN. “Getting the FDA clearance for this group of women could be very important to help postmenopausal women who want to have sexual activity and enjoy sex, but sometimes have issues with libido.”

A professor of obstetrics and gynecology told reporters that the decision was “logical” given the existing research.

Although supportive, the expert was guarded in her assessment: “Clinical trials showed statistical significance of the drug over the placebo, but the extent of the enhancement is not dramatic. Does it justify taking a drug every single day and not getting bang for your buck?”

What is Addyi, the ‘Women's Desire Pill’?

Flibanserin, which is often called “female Viagra,” has little in common with the drug from which it draws its nickname.

This medication was originally developed as an medication for depression but was considered unsuccessful during initial trials.

Nevertheless, scientists noted improvements in measures of libido and arousal and shifted focus to the drug’s possible use as a therapy for diminished sexual desire.

After two rejections, Addyi was cleared in 2015 to treat hypoactive sexual desire disorder, following additional research and a significant lobbying effort.

Addyi carries a boxed (“black box”) warning for severe side effects, including a drop in blood pressure and fainting (syncope), when taken alongside alcoholic drinks.

The label advises allowing a two-hour gap after consuming alcohol before taking Addyi to reduce the risk of syncope. If a person consumes three or more alcoholic drinks on a given day, the label recommends not taking the pill entirely.

Claims about the interactions of mixing Addyi and alcohol eventually led the pharmaceutical company to fund additional studies examining the interaction. The research, which were small in scale, demonstrated no additional risk of fainting. But experts had reservations.

“This research aren't very persuasive to me. They are a beginning, but they’re not very large-scale and certainly aren’t very long,” a public health expert stated.

An OB-GYN speculated that this may have been part of the cause why Addyi was not initially cleared for older females.

“There have been adverse reactions like the fainting spells and lightheadedness especially in persons who have had an drink within two hours of treatment. When you get more advanced in age, you become more sensitive to effects like that,” she said.

Another doctor echoed uncertainty about why the broader approval was capped at age 65.

“It's unclear if that has to do with the intricacies of the medication. Reviewing a list of the dos and don’ts, they are extensive. Now that this has been approved, they need to come out with an simpler guidance because it may affect our clinical decisions,” he said.

Addressing Diminished Sexual Desire in Postmenopausal Women

Notwithstanding the warnings, flibanserin could still broaden therapeutic choices for HSDD to a different group of women who may benefit.

“I believe it will serve this demographic better as long as they have no other medical problems,” said an specialist.

But it is not a magic bullet. In fact, the experts interviewed all agreed that the women's sexual desire is complex and multifaceted.

So addressing low desire means engaging with everything from partnership issues to hormonal changes.

Postmenopausal females experience a broad range of changes that can affect sexual desire. Symptoms of menopause encompass:

  • sudden feelings of heat
  • vaginal dryness
  • pain during intercourse
  • sleep disturbances
  • bladder leakage

According to one expert, treating these issues is often a initial approach toward improved intimacy.

“When a patient presents with concerns about desire, my first question is: Are you experiencing vaginal discomfort? Is intercourse painful?” she said.

The expert recommended both vaginal estrogen and hormone replacement therapy (HRT) as options to treat the symptoms of menopause, particularly dryness.

She hopes that the FDA’s recent removal of its “serious” warning on HRT will lead more females to feel less concerned about it and to view it as a treatment option.

Testosterone is also occasionally prescribed off-label to address reduced desire in women, although it is not officially approved for it.

But in addition to drugs, doctors say that personal habits should also be factored in. Conversations about libido almost always start with relationships and intimacy.

“I am comfortable recommending Addyi after having a conversation with a patient. But I would also advise them to talk about some of the psychosocial issues going on,” she said.

Other suggestions for boosting libido include:

  • improving sleep hygiene
  • exercising
  • maintaining an active lifestyle
  • using over-the-counter personal lubricants
  • practicing extended intimate stimulation
  • incorporating sexual wellness devices or dilators
“It requires an comprehensive, holistic strategy to sexuality and menopause in later life,” said an expert. “This involves understanding how your body works, your physiology, and your sexual needs — in other words, what makes you feel good, what allows you to get excited, and ultimately to have a climax of sexual pleasure.”
Erica Hodge
Erica Hodge

A tech strategist with over a decade of experience in digital transformation and business analytics, passionate about sharing actionable insights.