Neuropeptide Y (22-36), a 15 amino acid peptide, is a fragment of Neuropeptide Y.Neuropeptide Y (NPY) is a 36 amino-acid neuropeptide that is involved in various physiological and homeostatic processes in both the central and peripheral nervous systems. NPY has been identified as the most abundant peptide present in the mammalian central nervous system, which consists of the brain and spinal cord. It is secreted alongside other neurotransmitters such as GABA and glutamate.

L 152804 是一种具有口服活性的、选择性的神经肽 Y Y5 受体 (NPY5-R) 拮抗剂，其对 hY5 的 Ki 值为 26 nM。L 152804 通过调节食物摄入和能量消耗，使饮食引起的肥胖小鼠体重减轻。

Potent galanin receptor 2/3 (GAL2/GAL3) agonist (EC50 values are 45.7 and 112.2 nM, respectively). Exhibits no significant activity at galanin receptor 1. Endogenous satiety-inducing peptide; inhibits long chain fatty acid uptake by adipocytes and decreases food consumption in diet-induced obese mice and rats. Attenuates LH secretion in goldfish. Exhibits anxiolytic effects in vivo.