SB228357 is a selective, potent oral active 5-HT2C/2B receptor antagonist with pKi values of 6.9, 8.0 and 9.0 for 5-HT2A, 5-HT2B and 5-HT2C, respectively. SB228357 has antidepressant/anxiolytic effects[1][2].
SB228357 (0-10 mg/kg; oral administration; for 90 minutes; male Sprague Dawley rats) treatment significantly reverses Haloperidol-induced catalepsy[2]. Animal Model: Male Sprague Dawley rats (200-250 g) injected with Haloperidol[2]
[1]. Bromidge SM, et al. Biarylcarbamoylindolines are novel and selective 5-HT(2C) receptor inverse agonists: identification of 5-methyl-1-[[2-[(2-methyl-3-pyridyl)oxy]- 5-pyridyl]carbamoyl]-6-trifluoromethylindoline (SB-243213) as a potential antidepressant/anxiolytic agent. J Med Chem. 2000 Mar 23;43(6):1123-34. [2]. Reavill C, et al. Attenuation of haloperidol-induced catalepsy by a 5-HT2C receptor antagonist. Br J Pharmacol. 1999 Feb;126(3):572-4.