PT 141 (Bremelanotide): How It Works For Sexual Arousal PT 141 is discussed for sexual dysfunction in both men and women. Unlike blood flow focused approaches, it works centrally by modulating neurochemical signaling involved in PT 141 Side Effects: What You Need to Know Before Starting How Long Does PT 141 Last? Duration and Timing Guide Inner Balance Peptide for Erectile Dysfunction: Exploring PT 141 and Related Options PT 141 Peptide Therapy