Olanzapine is known as a multi-acting receptor targeted antipsychotic (MARTA), such as clozapine [
C2547] and quetiapine [
Q0092]. Olanzapine has greater affinity for serotonin 5-HT
2A and dopamine D
2 receptors. Furthermore, olanzapine has various affinities for multiple receptors, including serotonin 5-HT
2C, 5-HT
6 receptors, dopamine D
1-4, histamine H
1, and adrenergic α
1 receptors. In addition, olanzapine has moderate affinity binding for serotonin 5HT
3 and muscarinic M
1-5. While, olanzapine binds weakly to GABA
A, benzodiazepine (BZD), and β-adrenergic receptors. The precise mechanism of action is unknown, but olanzapine is used as a thienobenzodiazepine atypical antipsychotic.
Recently, it is reported that the use of olanzapine combined with a 5-HT
3 receptor antagonist, a neurokinin1 (NK
1) receptor antagonist and dexamethasone [
D1961] has improved the control of acute chemotherapy-induced nausea and vomiting. (The product is for research purpose only.)