PT-141 (Bremelanotide) is a synthetic cyclic heptapeptide and melanocortin receptor agonist, derived from the melanotan II structure. It has attracted growing interest in research focused on sexual health, libido enhancement, and female sexual dysfunction.
Studies have shown that PT-141 activates melanocortin receptors (MC3R and MC4R) in the central nervous system, modulating neural pathways involved in sexual response and arousal. Unlike erectile dysfunction medications, it acts centrally without targeting vascular pathways. It may also play a role in hypoactive sexual desire disorder (HSDD) treatment, male erectile function, and appetite regulation research.
MC3R/MC4R activation and central sexual response modulation
Female sexual desire and HSDD research
Male erectile function and libido enhancement
Central nervous system sexual arousal pathways
Appetite and metabolic regulation studies