Effect of Short Term Atypical Antipsychotic Administration Compared to Placebo on Hepatic Insulin Extraction

Olanzapine is approved for the treatment of schizophrenia and mania associated with bipolar disorder. Olanzapine is a psychotropic agent that belongs to the thienobenzodiazepine class. The chemical designation is 2-methyl-4-4methyl-1 piperazinyl-10H-thienol (2,3-b)\[1,5\]benzodiazepine. The molecular formula is C17H20N4S which corresponds to a molecular weight of 312.44.Olanzpine is a yellow crystalline solid which is practically insoluble in water. Olanzapine is a selective monoaminergic antagonist with high affinity binding to the following receptors:5HT2A2C, 5HT6, dopamine 2-4, histamine H1, and adrenergic α-1. In addition olanzapine is an antagonist with moderate affinity for muscarinic M1-5 and 5HT3. The mechanism of action of olanzapine is unknown although it may be mediated through a combination of dopamine and serotonergic type 2 receptors.