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Olanzapine

Generic Name
Olanzapine
Brand Names
Lybalvi, Olazax, Symbyax, Zalasta, Zypadhera, Zyprexa, Olanzapine Glenmark Europe, Olanzapine Apotex, Olanzapine Teva, Olazax Disperzi, Olanzapine Mylan, Zyprexa Velotab, Olanzapine Glenmark, Olanzapine Viatris (previously Olanzapine Mylan)
Drug Type
Small Molecule
Chemical Formula
C17H20N4S
CAS Number
132539-06-1
Unique Ingredient Identifier
N7U69T4SZR

Overview

Olanzapine is a thienobenzodiazepine classified as an atypical or second-generation antipsychotic agent. The second-generation antipsychotics were introduced in the 90s and quickly gained traction due to their impressive efficacy, reduced risk for extrapyramidal side effects and reduced susceptibility to drug-drug interactions. Olanzapine very closely resembles clozapine and only differs by two additional methyl groups and the absence of a chloride moiety. It was discovered by scientists at Eli Lilly and approved to be marketed in the US in 1996.

Indication

Olanzapine was initially used orally and intramuscularly for the chronic treatment of schizophrenia in patients over 13 years old and other psychiatric disorders such as bipolar I disorder including mixed or manic episodes. Olanzapine is also indicated, in combination with lithium or valproate for the short-term treatment of acute manic or mixed episodes associated with bipolar I disorder in adults. As well, olanzapine is indicated, in combination with fluoxetine for the treatment of episodes of depression associated with bipolar disorder type 1 and treatment-resistant depression in patients over 10 years old. Olanzapine is also approved for the management of psychomotor agitation associated with schizophrenia and bipolar I mania. Schizophrenia is a complex biochemical brain disorder that affects the person's ability to differentiate reality. It is usually observed as the presence of delusions, hallucinations, social withdrawal and disturbed thinking. Bipolar disorder is a mental health condition defined by periods of extreme mood disturbances. It is categorized in different types from which type 1 is known to involve episodes of severe mania and often depression while type 2 presents less severe forms of mania. Olanzapine is also indicated in combination with samidorphan for the treatment of bipolar I disorder, either as an adjunct to lithium or valproate or as monotherapy for the acute treatment of manic or mixed episodes or as maintenance therapy, and for the treatment of schizophrenia in adults.

Associated Conditions

  • Acute Agitation
  • Bipolar 1 Disorder
  • Bipolar Disorder With Manic or Mixed Episodes
  • Delirium
  • Delusional Parasitosis
  • Depressive Episodes
  • Gilles de la Tourette's Syndrome
  • Major depressive disorder, recurrent episode
  • Mixed manic depressive episode
  • Post Traumatic Stress Disorder (PTSD)
  • Psychosis
  • Schizophrenia
  • Acute Manic episode

Research Report

Published: Jul 14, 2025

Olanzapine (DB00334): A Comprehensive Pharmacological and Clinical Monograph

I. Introduction and Drug Identification

1.1. Overview and Classification

Olanzapine is a potent, second-generation (atypical) antipsychotic (SGA) agent that has become a cornerstone in the management of severe and persistent psychiatric disorders, most notably schizophrenia and bipolar I disorder.[1] Chemically, it is classified as a thienobenzodiazepine derivative, a structural class it shares with its predecessor, clozapine.[1] This structural heritage is fundamental to understanding its clinical profile, as it foreshadows both its broad, clozapine-like efficacy and some of its significant metabolic liabilities.[4]

Reflecting its complex pharmacology, olanzapine is also categorized as a Multi-Acting Receptor Targeted Antipsychotic (MARTA). This designation highlights its mechanism of action, which involves simultaneous antagonism at a wide array of neurotransmitter receptors, including dopamine, serotonin, histamine, adrenergic, and muscarinic receptors.[1] This broad receptor-binding profile is responsible for its therapeutic effects across different symptom domains as well as its extensive side-effect profile.

1.2. Historical Context and Development

Developed by scientists at Eli Lilly and Company under the internal code LY170053, olanzapine was patented in 1991 and received its initial approval from the U.S. Food and Drug Administration (FDA) in 1996.[4] Its development was a direct and strategic effort to engineer a novel antipsychotic with the superior efficacy of clozapine but without the associated risk of life-threatening agranulocytosis, a severe adverse effect that necessitates rigorous hematological monitoring and limits clozapine's use.[5]

Continue reading the full research report

Clinical Trials

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Title
Posted
Study ID
Phase
Status
Sponsor
2015/12/31
Not Applicable
Completed
2015/12/21
Phase 3
Completed
2015/12/18
Phase 3
Completed
2015/11/09
N/A
Completed
2015/11/01
Phase 4
Completed
University of Ghana Medical School
2015/10/21
N/A
Completed
Canadian Network for Observational Drug Effect Studies, CNODES
2015/09/29
Phase 4
UNKNOWN
2015/09/01
Phase 4
Completed
Dost Ongur
2015/06/30
Phase 3
Completed
First Affiliated Hospital of Harbin Medical University
2015/06/04
Phase 2
Terminated

FDA Drug Approvals

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Approved Product
Manufacturer
NDC Code
Route
Strength
Effective Date
Virtus Pharmaceuticals, LLC
69543-381
ORAL
5 mg in 1 1
6/15/2022
H2-Pharma LLC
61269-635
ORAL
20 mg in 1 1
10/9/2023
Zydus Lifesciences Limited
70771-1416
ORAL
2.5 mg in 1 1
9/27/2023
Torrent Pharmaceuticals Limited
13668-088
ORAL
10 mg in 1 1
12/8/2022
Aurobindo Pharma Limited
65862-658
ORAL
15 mg in 1 1
5/3/2020
PD-Rx Pharmaceuticals, Inc.
72789-265
ORAL
5 mg in 1 1
3/25/2024
Major Pharmaceuticals
0904-6283
ORAL
2.5 mg in 1 1
12/11/2022
Cardinal Health 107, LLC
55154-6889
ORAL
10 mg in 1 1
12/20/2022
Bryant Ranch Prepack
63629-8719
ORAL
20 mg in 1 1
10/14/2021
Qilu Pharmaceutical Co., Ltd.
67184-0561
ORAL
2.5 mg in 1 1
5/1/2018

EMA Drug Approvals

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HSA Drug Approvals

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NMPA Drug Approvals

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PPB Drug Approvals

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Health Canada Drug Approvals

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Approved Product
Company
DIN
Dosage Form
Strength
Market Date
MYLAN-OLANZAPINE ODT
Mylan Pharmaceuticals ULC
02382733
Tablet (Orally Disintegrating) - Oral
20 MG
3/30/2012
APO-OLANZAPINE ODT
02360624
Tablet (Orally Disintegrating) - Oral
10 MG
8/8/2011
AVA-OLANZAPINE
avanstra inc
02373467
Tablet - Oral
10.0 MG
11/23/2011
ACT OLANZAPINE ODT
teva canada limited
02327562
Tablet (Orally Disintegrating) - Oral
5 MG
10/16/2009
AG-OLANZAPINE ODT
angita pharma inc.
02487691
Tablet (Orally Disintegrating) - Oral
20 MG
N/A
PHL-OLANZAPINE ODT
pharmel inc
02307472
Tablet (Orally Disintegrating) - Oral
10 MG
2/18/2010
RIVA-OLANZAPINE ODT
laboratoire riva inc.
02339811
Tablet (Orally Disintegrating) - Oral
5 MG
2/17/2010
PMS-OLANZAPINE ODT
02303191
Tablet (Orally Disintegrating) - Oral
5 MG
10/15/2009
RAN-OLANZAPINE IR
ranbaxy pharmaceuticals canada inc.
02429632
Tablet - Oral
15 MG
N/A
OLANZAPINE
sanis health inc
02372835
Tablet - Oral
7.5 MG
10/26/2011

CIMA AEMPS Drug Approvals

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Approved Product
Company
Registration Number
Pharmaceutical Form
Prescription Type
Status
OLANZAPINA FLAS TARBIS 5 mg COMPRIMIDOS BUCODISPERSABLES EFG
Tarbis Farma S.L.
73692
COMPRIMIDO BUCODISPERSABLE
Medicamento Sujeto A Prescripción Médica
Commercialized
OLANZAPINA FLAS QUALIGEN 5 mg COMPRIMIDOS BUCODISPERSABLES EFG
Neuraxpharm Spain S.L.
73677
COMPRIMIDO BUCODISPERSABLE
Medicamento Sujeto A Prescripción Médica
Commercialized
OLANZAPINA KRKA 10 MG COMPRIMIDOS EFG
Krka D.D. Novo Mesto
70678
COMPRIMIDO
Medicamento Sujeto A Prescripción Médica
Commercialized
ZYPREXA 5 mg comprimidos recubiertos
96022004IP1
COMPRIMIDO RECUBIERTO
Medicamento Sujeto A Prescripción Médica
Commercialized
ZOLAFREN 5 mg COMPRIMIDOS EFG
Adamed Laboratorios S.L.U.
70350
COMPRIMIDO
Medicamento Sujeto A Prescripción Médica
Commercialized
ARENBIL 2,5 mg COMPRIMIDOS RECUBIERTOS CON PELICULA EFG
Neuraxpharm Spain S.L.
68990
COMPRIMIDO RECUBIERTO CON PELÍCULA
Medicamento Sujeto A Prescripción Médica
Commercialized
OLANZAPINA TECNIGEN 10 mg COMPRIMIDOS BUCODISPERSABLES EFG
Tecnimede España Industria Farmaceutica S.A.
75722
COMPRIMIDO BUCODISPERSABLE
Medicamento Sujeto A Prescripción Médica
Not Commercialized
ZYPREXA 10 mg POLVO PARA SOLUCION INYECTABLE
96022016
POLVO PARA SOLUCIÓN INYECTABLE
Medicamento Sujeto A Prescripción Médica
Commercialized
ZYPREXA 10 mg COMPRIMIDOS RECUBIERTOS
96022009
COMPRIMIDO
Medicamento Sujeto A Prescripción Médica
Commercialized
OLANZAPINA FLAS CINFA 20 mg COMPRIMIDOS BUCODISPERSABLES EFG
Laboratorios Cinfa S.A.
75237
COMPRIMIDO BUCODISPERSABLE
Medicamento Sujeto A Prescripción Médica
Commercialized

Philippines FDA Drug Approvals

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Saudi SFDA Drug Approvals

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Malaysia NPRA Drug Approvals

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UK EMC Drug Information

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