benign genital melanotic macules Melanosis and Lentiginosis (benign) Melanosis, Genitourinary Tract | Springer
Description
For example, hydroxychloroquine typically triggers pigmentation of the palatal mucosa

doi: 10.1016/j.cell.2006.06.057

PT-141 (bremelanotide) is a cyclic melanocortin-receptor agonist derived from Melanotan II, with research interest centred on MC4R activation in the central nervous system rather than peripheral pigmentation pathways

This allows it to pass through the blood-brain barrier making it the most bioavailable, and thus most easily absorbed, form
