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PT-141

Bremelanotide, Vyleesi

A synthetic peptide analog of alpha-MSH used to treat hypoactive sexual desire disorder by activating melanocortin receptors to enhance sexual arousal.

Quick Stats
Studies 74
Trials 10
Formula C50H68N14O10
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Utility 3
pubmed Mar 6, 2018

Evaluation and Management of Hypoactive Sexual Desire Disorder.

Clayton. Anita H AH; Kingsberg. Sheryl A SA; Goldstein. Irwin I

The paper reviews how doctors can spot and treat low sexual desire in women. It says the only FDA‑approved drug right now is flibanserin, but a peptide called bremelanotide (also known as PT‑141) is in late‑stage trials and might become another option.

Utility 3
pubmed Dec 1, 2017

Understanding the Role of Serotonin in Female Hypoactive Sexual Desire Disorder and Treatment Options.

Croft. Harry A HA

The review explains that too much serotonin in the brain can dampen sexual desire in women, while dopamine and other chemicals boost it. Most drugs that help with low desire work by lowering serotonin or raising dopamine, and the only approved pill right now is flibanserin. The peptide bremelanotide (PT‑141) is mentioned as one of several agents that target these pathways, but the paper doesn’t give new data on it.

Utility 3
pubmed Jun 15, 2008

Clinical applications of centrally acting agents in male sexual dysfunction.

Hellstrom. W J G WJ

The abstract explains that most current erectile dysfunction drugs work only on the penis, while a new peptide called bremelanotide (PT-141) works in the brain to boost sexual desire and response. Early studies suggest it could become the first drug that helps men’s sexual function by acting centrally, but more research is still needed.

Utility 3
pubmed Oct 11, 2018

Expert opinion on existing and developing drugs to treat female sexual dysfunction.

Miller. Melanie K MK; Smith. Joshua R JR; Norman. Jacqueline J JJ; Clayton. Anita H AH

The paper reviews current and experimental drugs for female sexual dysfunction, including hormones, flibanserin, and the peptide bremelanotide (pt‑141). It highlights that many promising compounds stall because clinical trials lack clear success measures and because women's sexual health is still under‑studied. For DIY health enthusiasts, the main take‑away is that bremelanotide shows promise but isn’t yet approved, and that any self‑experimentation should be cautious and based on limited data.

Utility 3
pubmed Mar 22, 2018

Effect Size in Efficacy Trials of Women With Decreased Sexual Desire.

Pyke. Robert E RE; Clayton. Anita H AH

In studies of women with low sexual desire, both drug treatments (including the peptide bremelanotide, also called pt-141) and talk‑therapy approaches showed a very large improvement (Cohen's d ≈ 1.0). A sugar‑pill placebo still helped a fair amount (d ≈ 0.55), while doing nothing (wait‑list) barely moved the needle (d ≈ 0.05).

Utility 3
pubmed Sep 16, 2025

Polymorphism of Melanocortin Receptor Genes-Association with Inflammatory Traits and Diseases.

Bardhan. Mainak M; Anand. Ayush A; Javed. Amaan A; Chilo. Maria Andrea MA; Khan. Nida N; Garg. Tulik...

Melanocortin receptors (MCRs) are proteins that affect everything from skin color and appetite to stress, immunity, and brain function. Different genetic variants of these receptors are linked to diseases like melanoma, obesity, diabetes, depression, and many inflammatory conditions. Several drugs that activate MCRs—including bremelanotide (pt‑141), afamelanotide, and setmelanotide—are already FDA‑approved for sexual desire, a rare skin disorder, and obesity, and early data suggest they might also help with inflammation.

Utility 3
pubmed Aug 19, 2019

Bremelanotide: First Approval.

Dhillon. Sohita S; Keam. Susan J SJ

Bremelanotide (Vyleesi™) is a synthetic peptide that mimics a natural hormone and has been approved in the US to treat low sexual desire in premenopausal women. It works by activating a brain receptor linked to sexual response and is taken as a self‑injected, on‑demand shot. The drug was developed by Palatin, licensed to AMAG, and passed Phase 3 trials before FDA approval.

Utility 3
pubmed Nov 6, 2014

Drugs in early clinical development for the treatment of female sexual dysfunction.

Belkin. Zoe R ZR; Krapf. Jill M JM; Goldstein. Andrew T AT

This review looks at drugs that are still in early testing for women who have low sexual desire, a condition that currently has no approved medication. One of the candidates is pt‑141 (bremelanotide), a peptide that may boost desire when given as a nasal spray or injection. The paper lists several other compounds in Phase I‑II trials, but all are experimental and not yet on the market.

Utility 3
pubmed Jun 19, 2025

Female Sexual Desire, Arousal, and Orgasmic Dysfunctions: A Systematic Review and Meta-Analysis of Treatment Options.

Toledo. Rafaela Germano RG; Winkelman. William D WD; Reyes-Gonzalez. Daniela D; Bergeron. Sophie S;...

A big review looked at how to treat women who have trouble with sexual desire, arousal, or orgasm (but no pain). It found that a talk‑therapy called mindfulness CBT helps all three areas, a pill called flibanserin helps desire, and the peptide bremelanotide (pt‑141) helps desire and arousal. All three also lower sexual distress, but the studies didn’t compare the therapies directly.

Utility 3
pubmed Sep 12, 2021

Hypoactive Sexual Desire Disorder in Women: Physiology, Assessment, Diagnosis, and Treatment.

Pettigrew. Jessica A JA; Novick. Andrew M AM

Half of US women have sexual function issues, and low sexual desire (HSDD) is the most common. Doctors often miss it, but there are tools to diagnose it and two FDA‑approved drugs—flibanserin (a pill) and bremelanotide (pt‑141, a peptide injection). The review explains how hormones and brain chemicals affect desire and suggests how clinicians can assess and treat the condition.

Utility 2
pubmed Jan 18, 2017

Flibanserin for hypoactive sexual desire disorder: place in therapy.

Gelman. Faina F; Atrio. Jessica J

This paper reviews the only FDA‑approved drug for low sexual desire in pre‑menopausal women, flibanserin, and notes its side‑effects and that it isn’t approved for post‑menopausal women. It also lists other drugs—including the peptide bremelanotide (pt‑141)—and non‑drug approaches that might help, but says the evidence for most of them is weak or limited.

Utility 2
pubmed Mar 27, 2020

Ultra-sensitive quantification of the therapeutic cyclic peptide bremelanotide utilizing UHPLC-MS/MS for evaluation of its oral plasma pharmacokinetics.

Sauter. Max M; Uhl. Philipp P; Burhenne. Jürgen J; Haefeli. Walter E WE

Researchers built a super‑sensitive test to measure the peptide bremelanotide (pt‑141) in blood and used it to see if taking the drug by mouth works in dogs. The test works well, but the dogs barely absorbed the peptide when given orally, meaning it’s not effective that way.

Utility 2
pubmed Dec 16, 2020

LC-HRMS characterization of the skin pigmentation and sexual enhancers melanotan II and bremelanotide sold on the black market of performance and image enhancing drugs.

Mestria. Serena S; Odoardi. Sara S; Frison. Giampietro G; Strano Rossi. Sabina S

The paper shows how a high‑tech lab method (LC‑HRMS) can spot the skin‑pigment and sexual‑enhancement peptides melanotan II and bremelanotide (pt‑141) in seized black‑market products, confirming they’re being sold illegally alongside steroids and other drugs.

Utility 2
pubmed Jan 9, 2025

Female Syrian hamster analyses of bremelanotide, a US FDA approved drug for the treatment of female hypoactive sexual desire disorder.

Borland. Johnathan M JM; Kohut-Jackson. Abigail L AL; Peyla. Anna C AC; Hall. Megan Al MA; Mermelste...

In a study using female Syrian hamsters, the drug bremelanotide (Vyleesi) did not change the levels of certain brain receptors linked to reward or make sexual activity feel more rewarding. The drug’s effects on the brain’s pleasure circuit appear minimal in this animal model.

Utility 2
pubmed Apr 7, 2025

FDA-approved drugs as potential covalent inhibitors of key SARS-CoV-2 proteins: an in silico approach.

Serilmez. Murat M; Abuelrub. Anwar A; Erol. Ismail I; Durdaği. Serdar S

A computer‑based study looked at existing FDA‑approved drugs and found that a few, including the peptide bremelanotide (also known as PT‑141), might stick to key COVID‑19 proteins and block the virus in theory. The work is purely virtual and needs lab and clinical testing before any real‑world use.

Utility 2
pubmed Sep 24, 2021

Psychometric validation of the Female Sexual Distress Scale-Desire/Arousal/Orgasm.

Derogatis. Leonard R LR; Revicki. Dennis A DA; Rosen. Raymond C RC; Jordan. Robert R; Lucas. Johna J...

Researchers checked that a questionnaire (FSDS-DAO) used to measure women's sexual distress is reliable and works well in a study of the peptide bremelanotide (pt‑141). The tool proved consistent and sensitive to changes, meaning future trials can trust the results it captures.

Utility 2
pubmed Feb 21, 2023

Small Effects, Questionable Outcomes: Bremelanotide for Hypoactive Sexual Desire Disorder.

Spielmans. Glen I GI; Ellefson. Elaine M EM

The study looked at how well the usual questionnaires measure the benefits of bremelanotide (pt-141) for women with low sexual desire. It found that many of the scores used aren’t proven to be reliable for this condition, and the drug only showed tiny or no improvements on most of the outcomes.

Utility 2
pubmed Jul 2, 2019

Responder Analyses from a Phase 2b Dose-Ranging Study of Bremelanotide.

Althof. Stanley S; Derogatis. Leonard R LR; Greenberg. Sally S; Clayton. Anita H AH; Jordan. Robert...

A Phase 2b study showed that a single 1.75 mg injection of bremelanotide (also called PT‑141) can improve sexual desire and satisfaction in pre‑menopausal women with low sexual drive, with a safety profile similar to placebo.

Utility 2
pubmed Jun 30, 2008

Pharmacological profiling of neuropeptides on rabbit vaginal wall and vaginal artery smooth muscle in vitro.

Aughton. K L KL; Hamilton-Smith. K K; Gupta. J J; Morton. J S JS; Wayman. C P CP; Jackson. V M VM

In rabbit tissue tests, the peptide bremelanotide (pt-141) did not relax vaginal muscle or arteries, while other neuropeptides like VIP, PACAP, and alpha‑MSH did. This suggests pt-141’s effects on female sexual arousal are probably not due to direct peripheral muscle relaxation.