January 29, 2026 9:45 PM PST
Hi! PT-141, also known as Bremelanotide, is a melanocortin receptor agonist studied mainly for sexual dysfunction. Most human research focuses on hypoactive sexual desire disorder in premenopausal women, and it’s FDA-approved under the brand name Vyleesi. In controlled studies, the
PT-141 research peptide has shown rapid effects on libido, usually within a few hours of subcutaneous administration. Common side effects reported include mild nausea, flushing, headache, and occasional increases in blood pressure. While preclinical research explored other potential applications, human data outside sexual function is limited, so following clinical dosing protocols is recommended for safety.