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 The Best Peptide for Erectile Dysfunction: What PT 141 Offers (and Where It Falls Short) 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 Savannah Georgia PT141 Peptide Therapy for Men PT 141 Peptide Injections Concierge MD