DG Peptide Protocols
FDA ApprovedSexual Health

PT-141

Bremelanotide

Melanocortin Receptor Agonist | Sexual Dysfunction Treatment

Half-life
~2.7 hours
Chain length
7 amino acids
Reference frequency
As needed before sexual activity; max 1 dose per 24 hours

Research overview

DoseGear research brief

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.

Compound background

Development & research timeline

Study windows describe what researchers measured, not when an individual should expect a result.

Origin & development

Bremelanotide, developed from melanocortin-analog research.

What it is researched for

Sexual-function research and a defined approved sexual-desire indication through central melanocortin-receptor agonism.

Research observation window

Not reported for an attributable injectable-vial response window in the reviewed evidence.

Reference data

Lyophilized vial injectable protocols

Not personalized dosing instructions

Only injectable vial references are shown. Nasal, topical, and unsupported non-vial schedules are excluded.

Research contextAmountFrequencyRoute
Female HSDD (FDA-approved)1.75mgAs needed, max 1 dose/24hrSubQ
Male Erectile Dysfunction1-2mgAs needed, 45-60min before activitySubQ
Female Arousal Disorder0.75-1.25mgAs needed, max 1 dose/24hrSubQ
Low Starting Dose0.5mgTest dose for tolerance assessmentSubQ

Reference cycle

Use as needed for sexual enhancement

Reference storage

Refrigerate at 2-8°C, use reconstituted solution within 30 days

Safety context

Reported side effects

  • Nausea (40%)
  • Flushing (20%)
  • Headache (11%)
  • Injection site reactions

Contraindications & cautions

  • Uncontrolled hypertension
  • Cardiovascular disease
  • Use of nitrate medications
  • Pregnancy or breastfeeding

Scientific references

  1. 01

    Bremelanotide for the Treatment of Hypoactive Sexual Desire Disorder: Two Randomized Phase 3 Trials (RECONNECT)

    Scientific citationBremelanotide for the Treatment of Hypoactive Sexual Desire Disorder: Two Randomized Phase 3 Trials (RECONNECT). Obstetrics & Gynecology (2019).
  2. 02

    Double-Blind, Placebo-Controlled Evaluation of Intranasal PT-141 in Healthy Males and Patients with Erectile Dysfunction

    Scientific citationDouble-Blind, Placebo-Controlled Evaluation of Intranasal PT-141 in Healthy Males and Patients with Erectile Dysfunction. Urology (2004).
  3. 03

    The Neurobiology of Bremelanotide for the Treatment of HSDD in Premenopausal Women

    Scientific citationThe Neurobiology of Bremelanotide for the Treatment of HSDD in Premenopausal Women. CNS Spectrums (2021).
  4. 04

    Salvage of Sildenafil Failures with Bremelanotide: A Randomized, Double-Blind, Placebo-Controlled Study

    Scientific citationSalvage of Sildenafil Failures with Bremelanotide: A Randomized, Double-Blind, Placebo-Controlled Study. Journal of Urology (2008).

This DoseGear profile combines published scientific literature with lyophilized-vial protocol references. Citations are provided for independent review.

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