ST4206 inhibits agonist-induced cAMP accumulation (IC50: 990 nM)[1].

ST4206 (10, 20, and 40 mg/kg, p.o.) antagonizes haloperidol-induced catalepsy, and increases motor activity in a dose dependent manner in mice. ST4206 (20 and 40 mg/kg) significantly increases the number of contralateral turns induced by l-DOPA in rats[1]. ST4206 is orally active at concentrations of 10, 20, and 40 mg/kg in haloperidol-induced catalepsy in mice[2].