Antipsychotic agent. Displays high affinity for dopamine D4 and serotonergic 5-HT2A receptors and relatively weak affinity at D2 receptors (Ki values are 3.0, 5.8, 134, 181, 199, 240, 411 and > 678 nM for D4, 5-HT2A, 5-HT1A, α1, D2, D3, D1, α2 and muscarinic receptors respectively). Inhibits exploratory locomotor activity and antagonizes d-amphetamine-induced locomotor stimulation in rats.