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QuickView for olanzapine (compound)


PubChem
Name: olanzapine
PubChem Compound ID: 4585
Molecular formula: C17H20N4S
Molecular weight: 312.434 g/mol
Synonyms:
Olanzapine (JAN/USAN); Olanzapine; 10H-thieno[2,3-b][1,5]benzodiazepine, 2-methyl-4-(4-methyl-1-piperazinyl)-; Zyprexa; Zyprexa Zydis; LS-152313; Zyprexa Velotab; LY-170053; D00454; LY 170053.
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DrugBank
Identification
Name: olanzapine
Name (isomeric): DB00334
Drug Type: small molecule
Brand: Zydis, Zyprexa Intramuscular, Symbyax, Olansek, Zyprexa Zydis, Zyprexa
Category: Antiemetics, Antipsychotic Agents, Antipsychotics, Serotonin Uptake Inhibitors
CAS number: 132539-06-1
Pharmacology
Indication: For the acute and maintenance treatment of schizophrenia and related psychotic disorders, as well as acute treatment of manic or mixed episodes of bipolar 1 disorder. Intramuscular olanzapine is indicated for the rapid control of agitated patients.
Pharmacology:
Olanzapine, an atypical antipsychotic agent, is used to treat both negative and positive symptoms of schizophrenia, acute mania with bipolar disorder, agitation, and psychotic symptoms in dementia. Future uses may include the treatment of obsessive-compulsive disorder and severe behavioral disorders in autism. Structurally and pharmacologically sim...
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Mechanism of Action: Olanzapine's antipsychotic activity is likely due to a combination of antagonism at D2 receptors in the mesolimbic pathway and 5HT2A receptors in the frontal cortex. Antagonism at D2 receptors relieves positive symptoms while antagonism at 5HT2A receptors relieves negative symptoms of schizophrenia.
Absorption: Well absorbed, with approximately 40% of the dose metabolized before reaching the systemic circulation.
Protein binding: 93%
Biotransformation: Hepatic
Route of elimination: It is eliminated extensively by first pass metabolism, with approximately 40% of the dose metabolized before reaching the systemic circulation. Following a single oral dose of 14C labeled olanzapine, 7% of the dose of olanzapine was recovered in the urine as unchanged drug, indicating that olanzapine is highly metabolized.
Half Life: 21 to 54 hours
Clearance: 12 to 47 L/h
Toxicity: Symptoms of an overdose include tachycardia, agitation, dysarthria, decreased consciousness and coma. Death has been reported after an acute overdose of 0.45g, but also survival after an acute overdose of 1500g.
Affected organisms: Humans and other mammals
Interactions
Food interaction:
Avoid alcohol.
Take without regard to meals.
Drug interaction:
TrimethobenzamideTrimethobenzamide and Olanzapine, two anticholinergics, may cause additive anticholinergic effects and enhance their adverse/toxic effects. Monitor for enhanced anticholinergic effects.
FluvoxamineFluvoxamine increases the effect and toxicity of olanzapine
RitonavirRitonavir decreases the effect of olanzapine
DonepezilPossible antagonism of action
TrospiumTrospium and Olanzapine, two anticholinergics, may cause additive anticholinergic effects and enhanced adverse/toxic effects. Monitor for enhanced anticholinergic effects.
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