Bremelanotide or PT-141 is the generic term for a new research peptide for use in helping improve sexual dysfunction in men (erectile dysfunction or impotence) as well as helping improve sexual dysfunction in women (sexual arousal disorder).

Bremelanotide, PT-141 does not act on the vascular system like the former compounds but it is known and has been shown to help increase sexual activity in both male and female mammals. Bremelanotide PT-141 allegedly works by activating melanocortin receptors in the brain, therefore helping increase ones sexual stimulation.