PT141, also known as bremelanotide or Vyleesi®, is a synthetic peptide that bears structural similarity to alpha melanocyte-stimulating hormone (α-MSH). Just like α-MSH, PT141 stimulates melanocortin receptors. There are 5 melanocortin receptors, MC1R-MC5R, each of which is associated with a set of activities. PT141 works primarily by activating the MC4 receptor, which not only affects […]









