Bremelanotide (PT-141): Bremelanotide is a peptide and is the active ingredient in Vyleesi®. Also known as PT-141, bremelanotide was developed as a treatment for female sexual dysfunction and male erectile dysfunction. It works by activating receptors in the brain that are involved in pleasure and desire. It also increases blood flow to the genitals and enhances sexual arousal. Bremelanotide is usually taken 4 hours before either by nasal spray or by subcutaneous injection.
Some potential benefits of bremelanotide in males and females include:
Increased interest in sex
Improved clitoral sensitivity
Stronger, longer lasting erections