(Rac)-WAY-161503 is a potent, selective, highly affinity 5-HT 2C receptor agonist with a K i of 4 nM and an EC 50 of 12 nM. (Rac)-WAY-161503 displays higher affinity for 5-HT 2C than 5-HT 2A and 5-HT 2B receptors. (Rac)-WAY-161503 has anti-obesity and antidepressant effects. In Vivo (Rac)-WAY-161503 (3-30 mg/kg; intraperitoneal injection; male C57BL/6J mice) dose-dependently decreases locomotor activity, an effect that is blocked by the 5-HT 2C/2B antagonist SER-082 . MCE has not independently confirmed the accuracy of these methods. They are for reference only. Animal Model: Male C57BL/6J mice with hallucinogen 1-(2,5-dimethoxy-4-iodophenyl)-2-aminopropane (DOI) Dosage: 3 mg/kg, 10 mg/kg, 30 mg/kg Administration: Intraperitoneal injection (i.p.) Result: Dose-dependently decreased locomotor activity, an effect that was blocked by the 5-HT 2C/2B antagonist SER-082. Form:Solid