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PT-141 basics for men What PT-141 is: Synthetic peptide (bremelanotide is pharmaceutical name) Melanocortin-4 receptor (MC4R) agonist Works on brain's sexual desire pathways FDA-approved for women (Vyleesi), used off-label for men Increases sexual arousal and desire centrally How it's different from Viagra/Cialis: Viagra/Cialis: Work on blood vessels (PDE5 inhibitors) PT-141: Works on brain chemistry and desire Viagra/Cialis: Need sexual stimulation to work PT-141: Increases desire itself, not just mechanical function Can work when Viagra doesn't Primary benefits for men: Improved erectile function Enhanced libido and sexual desire Better arousal response Works for psychological ED Helps performance anxiety Increases sexual satisfaction Learn peptide basics in our what are peptides guide and how peptides work
cGMP then signals for vasorelaxation (Stasch et al., 2011)
