<unk>  is a cyclic heptapeptide lactam analogue of α-melanocyte-stimulating hormone (α-MSH). It has the amino acid sequence Ac-Nle-cycloAsp-His-D-Phe-Arg-Trp-Lys-OH, and is also known as cyclo-Nle4,Asp5,D-Phe7,Lys10α-MSH-(4-10).<unk>  is an active metabolite of melanotan II that lacks the C-terminal amide group. Aside from melanotan II and endogenous melanocyte-stimulating hormones like α-MSH, other peptide analogues of the same family as<unk>  include afamelanotide (NDP-α-MSH), modimelanotide, and setmelanotide.
Bremelanotide
Rivastigmine
Carbidopa/levodopa
Tianeptine
Donepezil
Glysobuzole
Glybuzole
Fluorodopa