Supplement Scholar
Sexual Health

PT-141

Research compound. This is not a dietary supplement. Unless it is identified as an approved prescription drug, it is not approved by the FDA for human use. This page summarizes published research for education only; we do not sell it or link to sellers.

PT-141. A melanocortin-receptor agonist studied (and approved in some regions) for sexual dysfunction in both men and women.

How it works. Activates melanocortin receptors (especially MC4R) in the central nervous system to enhance sexual arousal, independent of vascular mechanisms.

What the research supports. 3 graded claims. Strongest: Approved for hypoactive sexual desire disorder in some regions (preclinical).

Hormonal impact. Effects on Melanocortin signaling (MC4R), Oxytocin, Dopamine (limbic), Norepinephrine.

Side effects and interactions. 2 medication interactions listed. Serious: Cardiovascular events in those with uncontrolled hypertension.

Stacking. Pairs well with PDE5 inhibitors. Avoid combining with Uncontrolled hypertension, Cardiovascular disease.

Common forms. Available as Subcutaneous injection, Intranasal spray (research).

Community. Experiences from people who have tried PT-141. Anecdotes are not medical advice.

PT-141. A melanocortin-receptor agonist studied (and approved in some regions) for sexual dysfunction in both men and women.

Molecular structureC50H68N14O10 · 1025.2 g/mol

What it is

PT-141 is a synthetic peptide derived from melanotan II, modified to act on melanocortin receptors involved in sexual arousal pathways.

Also called

Bremelanotide

How it works

Activates melanocortin receptors (especially MC4R) in the central nervous system to enhance sexual arousal, independent of vascular mechanisms.

Pathways

  • MC4R activation in hypothalamus
  • Central arousal signaling

Effects

  • ↑Sexual arousal and desire increases
  • +Erectile and lubrication responses centrally supports

What the research supports

Approved for hypoactive sexual desire disorder in some regionspreclinical
Works centrally — useful when vascular medications are not effectivepreclinical
Effective within 30–60 minutes of dosingpreclinical

Strong: consistent results across large trials or meta-analyses. Moderate: several trials, mostly positive. Limited: small or mixed studies. Preclinical: animal or cell research only.

Hormonal impact

↑Melanocortin signaling (MC4R)increases
↑Oxytocinincreases
~Dopamine (limbic)modulates
↑Norepinephrineincreases

Side effects & interactions

Common side effects

  • Nausea
  • Flushing
  • Headache

Serious

  • Cardiovascular events in those with uncontrolled hypertension

Medication interactions

Antihypertensivesmoderate

Can transiently raise blood pressure.

Naltrexonemoderate

May interfere via overlapping CNS pathways.

Check any supplement–medication combination with your pharmacist before starting.

Combines with

Pairs well

  • PDE5 inhibitorsDifferent mechanism; can be complementary under medical supervision.

Avoid combining

  • Uncontrolled hypertensionRisk of acute BP elevation.
  • Cardiovascular diseaseAvoid until cleared by a clinician.

Common forms

  • Subcutaneous injection
  • Intranasal spray (research)

Discussion

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