CGP 71683 HCl is an antagonist of the NPY Y5 receptor with IC50 of 1.4 nM.

Velneperit is a neuropeptide Y (NPY) Y5 receptor antagonist.

JNJ-31020028 is a brain-permeable and selective neuropeptide Y receptor antagonist IC50 value of 8.51nM

L 152804 is a selective non-peptide neuropeptide Y Y5 receptor antagonist (Ki = 26 nM).

M617 is a selective galanin GAL1 receptor agonist with Ki values of 0.23 and 5.71 nM for GAL1 and GAL2 receptors respectively.

M 1145 is a potent agonist of galanin receptor 2 (GAL2) with EC50 of 38 nM. The Ki values are 6.55, 497 and 587 nM at GAL2, GAL3 and GAL1 respectively.

Galanin (1-30) (human), a 30-amino acid neuropeptide, can act as agonist of GalR1 and GalR2 receptors with Kis of both 1 nM.