
HORMONE / FDA APPROVED
PT-141 (Bremelanotide / Vyleesi)
Subcutaneous injection
Overview
A synthetic cyclic heptapeptide melanocortin receptor agonist that activates MC3R and MC4R in the central nervous system. Unlike PDE5 inhibitors that act peripherally on vascular smooth muscle, PT-141 works centrally through hypothalamic melanocortin pathways that modulate sexual arousal and desire.
Mechanism of Action
It is a metabolite of Melanotan II without significant melanogenic activity.
​Research Summary & Key Findings
FDA-approved in 2019 (Vyleesi) for hypoactive sexual desire disorder (HSDD) in premenopausal women. RECONNECT trials showed statistically significant increases in sexual desire and reduction in distress. First centrally-acting treatment for female sexual dysfunction.
Clinical Status
FDA APPROVED
PT-141 (Bremelanotide / Vyleesi) has received FDA approval and is available for clinical use under appropriate medical supervision. Consult a qualified healthcare provider for prescribing information.
Administration Routes
Subcutaneous injection (weekly)
Administration Routes
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