PT-141
FDA-approvedMelanocortin Receptor Agonist | Sexual Dysfunction Treatment
FDA-approved melanocortin receptor agonist for treatment of hypoactive sexual desire disorder (HSDD) in premenopausal women.
Molecular & research data
- Half-life
- ~2.7 hours
- Primary targets
- melanocortin-receptor
- Routes (research)
- Injectable, Nasal
- Storage
- Refrigerate at 2-8°C, use reconstituted solution within 30 days
Overview
FDA-approved melanocortin receptor agonist for treatment of hypoactive sexual desire disorder (HSDD) in premenopausal women. Works centrally in the nervous system to trigger sexual arousal pathways independent of vascular mechanisms, unlike traditional ED medications.
Mechanism of action
Selectively activates melanocortin receptors (MC3R/MC4R) in the central nervous system, triggering sexual arousal pathways independent of peripheral vascular mechanisms. Works within 45 minutes with effects lasting 6-12 hours.
Key research findings
- FDA-approved pharmaceutical route
- Predictable absorption profile
- Effective for both male and female sexual dysfunction
- Works within 45 minutes
- Effective in PDE5 inhibitor-resistant cases
- Central mechanism (not dependent on blood flow)
Research applications
Sexual Health
- Hypoactive Sexual Desire Disorder (HSDD) — FDA-approved for treatment of HSDD in premenopausal women.
- Erectile Dysfunction — Effective in men including PDE5 inhibitor-resistant cases via CNS pathways.
- Female Sexual Arousal Disorder — Enhances sexual arousal and desire in women.
Quality of Life
- Sexual Distress Reduction — Reduces distress related to low sexual desire.
- Sexual Satisfaction — Enhanced satisfaction reported in clinical trials.
PT-141 FAQ
How is PT-141 different from Viagra if both treat erectile dysfunction?+
Completely different mechanisms. Viagra (sildenafil) works peripherally by dilating blood vessels in the penis (PDE5 inhibition). PT-141 works centrally in the brain via melanocortin receptors to trigger sexual desire and arousal independent of blood flow. PT-141 can even work in PDE5 inhibitor-resistant cases because it bypasses the vascular system entirely.
Why does PT-141 cause nausea in 40% of people?+
PT-141 activates melanocortin receptors broadly in the brain, not just sexual arousal centers. Off-target activation in nausea-control areas is a known side effect. Taking an anti-nausea medication 30 minutes before PT-141 (as recommended in the file) significantly reduces this. Many users find pre-medication worthwhile for the benefit.
Can women use PT-141, or is it only for men?+
Women can use it. PT-141 is FDA-approved for female HSDD (hypoactive sexual desire disorder) at 1.75mg. Men use 1-2mg for ED. The mechanism is identical—melanocortin receptor activation increases sexual arousal in both sexes. It's one of the few sexual enhancement drugs with proven efficacy specifically in women.
Is PT-141 safe if I have high blood pressure?+
No. PT-141 raises blood pressure and causes flushing. The file lists uncontrolled hypertension as a contraindication. Monitor your BP closely if you have hypertension, and avoid combining with blood pressure-lowering medications. Nitrates are specifically contraindicated due to severe hypotension risk.
References
- [1]Bremelanotide for the Treatment of Hypoactive Sexual Desire Disorder: Two Randomized Phase 3 Trials (RECONNECT)Obstetrics & Gynecology
- [2]Double-Blind, Placebo-Controlled Evaluation of Intranasal PT-141 in Healthy Males and Patients with Erectile DysfunctionUrology
- [3]The Neurobiology of Bremelanotide for the Treatment of HSDD in Premenopausal WomenCNS Spectrums
- [4]Salvage of Sildenafil Failures with Bremelanotide: A Randomized, Double-Blind, Placebo-Controlled StudyJournal of Urology
- [5]Safety Profile of Bremelanotide Across the Clinical Development ProgramJournal of Women's Health
- [6]Bremelanotide for Treatment of Female Hypoactive Sexual DesireExpert Opinion on Pharmacotherapy
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Last reviewed: 2026-06-26. Information is provided for research and educational reference only — see our disclaimer.