PT-141 (bremelanotide) is a synthetic peptide that targets melanocortin receptors in the brain to increase sexual desire and arousal in both men and women.
Central Nervous System: It binds to MC4R and MC1R receptors in the brain rather than acting directly on blood vessels.Desire and Arousal: It stimulates pathways tied to sexual motivation and arousal, distinguishing it from PDE5 inhibitors like Viagra.Administration: The approved injectable form is given subcutaneously (in the abdomen or thigh) at least 45 minutes before sexual activity.