Olanzapine

Olanzapine is a 5-HT2 serotonin and D1/D2 dopamine receptor antagonist, that binds to dopamine D1, D2, and D4 receptors (Ki=31, 11, and 27 nM, respectively) as well as the serotonin (5-HT) receptor subtypes 5-HT2A, 5-HT2C and 5-HT3 (Ki=4, 11, and 57 nM, respectively). It also binds to M1 muscarinic acetylcholine, alpha1-adrenergic and histamine H1 receptors (Ki=2, 19, and 7 nM, respectively). Olanzapine is an atypical antipsychotic that displays anticholinergic properties. Olanzapine shows antidepressant-like activity. Formulations containing olanzapine have been used in the treatment of schizophrenia and bipolar disorder and for the prevention and treatment of chronic nausea and chemotherapy-induced nausea and vomiting.