PT 141 for Erectile Dysfunction: What Men Need to Know Double blind, placebo controlled evaluation of the safety, pharmacokinetic properties and pharmacodynamic effects of intranasal PT 141, a melanocortin receptor agonist, in healthy males and patients with mild to moderate erectile dysfunction Here's the part nobody explains when they're selling you the "Barbie drug.", , Melanotan 2 is a synthetic peptide that mimics alpha MSH a hormone your body already makes to tell your skin cells to PT 141 FOR MEN: A NEW DRUG TO TREAT ERECTILE DYSFUNCTION AND LOW LIBIDO Urologist & Andrology Laboratory located in Great Neck, NY Bruce R Gilbert MD, PhD, PC