Peptide Arcana
Setmelanotide: Switches on MC4R, the brain's fullness receptor, in rare obesity where the signal upstream is broken. Side effect: darker skin.

Setmelanotide

How it works

Switches on MC4R, the brain's fullness receptor, in rare obesity where the signal upstream is broken. Side effect: darker skin.

What it's made of

8 amino acids in a ring, copied from alpha-MSH, the hormone that curbs hunger in the hypothalamus through the MC4 receptor.

What it's for

Prescribed for
Obesity from genetic POMC, PCSK1 or LEPR deficiency and Bardet-Biedl syndrome, from age 2; acquired hypothalamic obesity, from age 4. Not for common obesity.

Educational satire, not medical advice.