PF-01247324 is a selective and orally bioavailable Nav1.8 channel blocker (IC50: 196 nM).

MIF-1 (Melanostatin), an endogenous brain peptide, is a potent dopamine receptor allosteric modulator. MIF-1 inhibits melanin formation. MIF-1 blocks the effects of opioid receptor activation to modulate the analgesic effects. MIF-1 accesses from the blood to the CNS by directly crossing the blood-brain barrier (BBB).

Vasopressin acetate is a peptide hormone with vasoconstrictive and antidiuretic activities that binds to the vascular arginine vasopressin receptor V1 with Kd values of 1.31 and 1.44 nM in A7r5 rat aortic smooth muscle cells and neonatal rat cardiomyocytes respectively.