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PC-003 · melanocortin · pt-141

PT-141

Bremelanotide

Also: Vyleesi

fda approvedhuman trialmeta analysis

A melanocortin receptor agonist FDA-approved for hypoactive sexual desire disorder (HSDD) in premenopausal women. Unlike PDE5 inhibitors (Viagra), PT-141 works through the central nervous system, affecting sexual desire rather than blood flow mechanics.

Activates melanocortin receptors (MC3R and MC4R) in the hypothalamus, modulating neural pathways involved in sexual arousal and desire. Derived from Melanotan II but engineered specifically for sexual function.

  • Female sexual dysfunction
  • Male erectile dysfunction
  • Libido enhancement
  • · Nausea (common)
  • · Flushing
  • · Headache
  • · Injection site reactions
  • · Transient hypertension

Mechanism of Action

Activates melanocortin receptors (MC3R and MC4R) in the hypothalamus, modulating neural pathways involved in sexual arousal and desire. Derived from Melanotan II but engineered specifically for sexual function.

Common Uses

Female sexual dysfunctionMale erectile dysfunctionLibido enhancement

Dosage & Pharmacology

DOSAGE RANGE: 1.75 mg subcutaneous (FDA-approved dose), 0.5-2 mg (research)
HALF-LIFE: ~2.7 hours
Dosage information is for research reference only. Not a recommendation.

Known Side Effects

  • Nausea (common)
  • Flushing
  • Headache
  • Injection site reactions
  • Transient hypertension

Legal Status

US:FDA-approved (Vyleesi) for HSDD in women
UK:Not approved
EU:Not approved
AU:Not approved

Related Peptides

View all PT-141 research on PubMed