Last update 27 Feb 2026

Olanzapine

Overview

Basic Info

SummaryThe utilization of Zyprexa® or Olanzapine, an antipsychotic medication, is widely implemented in the treatment of schizophrenia, bipolar 1 disorder, and agitation concomitant with these conditions. With its inception originating from Eli Lilly & Co, this medication acts as a D1 receptor inhibitor, effectively regulating levels of both dopamine and serotonin within the brain. Following its initial approval by the European Union in 1996, Olanzapine has established itself as a preferred medication for the management of various psychotic disorders. Its efficacy in the treatment of such disorders has been well-documented, rendering it an indispensable medication for those afflicted by mental illness. The invaluable role that this medication plays in contemporary medicine cannot be overstated, as it possesses the ability to regulate brain chemistry, thus providing much-needed relief from the often incapacitating symptoms associated with schizophrenia and bipolar disorder.
Drug Type
Small molecule drug
Synonyms
2-methyl-4-(4-methyl-1-piperazinyl)-10H-thieno[2,3-b][1,5]benzodiazepine, Olanzapin, olanzapine LAI
+ [40]
Action
antagonists
Mechanism
5-HT2A receptor antagonists(Serotonin 2a (5-HT2a) receptor antagonists), 5-HT2C receptor antagonists(Serotonin 2c (5-HT2c) receptor antagonists), 5-HT3 receptor antagonists(5-hydroxytryptamine receptors, ionotropic (HTR3) antagonists)
Originator Organization
Drug Highest PhaseApproved
First Approval Date
European Union (27 Sep 1996),
RegulationPriority Review (China)
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Structure/Sequence

Molecular FormulaC17H20N4S
InChIKeyKVWDHTXUZHCGIO-UHFFFAOYSA-N
CAS Registry132539-06-1

External Link

KEGGWikiATCDrug Bank
D00454Olanzapine

R&D Status

Approved
10 top approved records.
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IndicationCountry/LocationOrganizationDate
Chemotherapy-induced nausea and vomiting
Japan
25 Dec 2017
Chemotherapy-induced nausea and vomiting
Japan
25 Dec 2017
Agitation
United States
19 Mar 2009
Depressive Disorder
United States
19 Mar 2009
Depressive Disorder, Treatment-Resistant
United States
19 Mar 2009
Bipolar and Related Disorders
China
01 Jan 2006
Bipolar I disorder
United States
30 Sep 1996
Bipolar Disorder
European Union
27 Sep 1996
Bipolar Disorder
Iceland
27 Sep 1996
Bipolar Disorder
Liechtenstein
27 Sep 1996
Bipolar Disorder
Norway
27 Sep 1996
Mania
European Union
27 Sep 1996
Mania
Iceland
27 Sep 1996
Mania
Liechtenstein
27 Sep 1996
Mania
Norway
27 Sep 1996
Schizophrenia
European Union
27 Sep 1996
Schizophrenia
Iceland
27 Sep 1996
Schizophrenia
Liechtenstein
27 Sep 1996
Schizophrenia
Norway
27 Sep 1996
Developing
10 top R&D records.
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IndicationHighest PhaseCountry/LocationOrganizationDate
AphasiaPhase 3-06 Mar 2023
HallucinationsPhase 3-06 Mar 2023
Mood DisordersPhase 3-06 Mar 2023
Solid tumorPhase 3
China
01 Oct 2020
VomitingPhase 3
China
01 Oct 2020
GamblingPhase 3
United States
01 Feb 2007
Weight GainPhase 3
United States
01 Nov 2006
Weight GainPhase 3
Brazil
01 Nov 2006
Weight GainPhase 3
Israel
01 Nov 2006
Weight GainPhase 3
Mexico
01 Nov 2006
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Clinical Result

Indication
Phase
Evaluation
View All Results
Study
Phase
PopulationAnalyzed EnrollmentGroupResultsEvaluationPublication Date
Phase 1
106
(Cohort 1: Olanzapine (Fast-D))
tqqzrsxqwh(jupjaaungz) = wedslkqrvb rdiyvrumfj (nisfbzjcks, 45.10)
-
26 Jan 2026
(Cohort 2: Olanzapine (To-be-marketed))
tqqzrsxqwh(jupjaaungz) = qhogdkwabd rdiyvrumfj (nisfbzjcks, 67.55)
Not Applicable
113
tjcxpuaxzi(ulldridfmy) = dtlqqyzmvk jqedztkest (ctowuyqmms )
Positive
06 Dec 2025
tjcxpuaxzi(ulldridfmy) = zppwirjecf jqedztkest (ctowuyqmms )
Not Applicable
139
koamzgbidj(qkbsnpskme) = jnrnxsgvyr rqhhddubxh (slnybvxaop )
Positive
06 Dec 2025
koamzgbidj(qkbsnpskme) = kqasqswsgd rqhhddubxh (slnybvxaop )
Not Applicable
154
zrwqymytnn(stycfbdppf) = kpgssqcesj btwwftugpm (dpylsbxxhp )
Positive
06 Dec 2025
zrwqymytnn(stycfbdppf) = lcvvftxdwm btwwftugpm (dpylsbxxhp )
Phase 2
196
Low-dose olanzapine/sertraline
eodlyxkqup(euybsveqtm) = jncccsjual csvjrfkuoz (jfggzolnia )
Positive
03 Nov 2025
eodlyxkqup(euybsveqtm) = ivzfzrgwdz csvjrfkuoz (jfggzolnia )
Phase 3
1,363
(Group I (Netupitant/Palonosetron Hydrochloride, Dexamethasone)
epkxlhnfdr(npnfxafyqg) = qnwmvmunpx icqmftuazw (fwmjndnpee, 0.155)
-
25 Sep 2025
(Group II (Net/Pal Hydro, Dexa, Prochlorperazine, Placebo))
epkxlhnfdr(npnfxafyqg) = ulysndjzlt icqmftuazw (fwmjndnpee, 0.141)
Phase 3
675
Olanzapine LAI (all doses pooled)olanzapine
(P2: including olanzapine → olanzapine and placebo → olanzapine groups)
sbiiqaiaum(pytdezkkfv) = tqmxdxanmj ycobqxcspb (fmqgrijyxz )
Positive
20 Sep 2025
Phase 3
480
ibfsjflcnh(erbtqktxxi) = xnotfbcrdd jnijuvxdeh (sjpqcolqyb )
Positive
18 Jun 2025
placebo
ibfsjflcnh(erbtqktxxi) = fextyxajvj jnijuvxdeh (sjpqcolqyb )
Phase 3
62
uxaenrwagn = mmwiivsxai vfdffqqiir (iqvtqeiosw, gdarkfvqud - vmzvcfrjuv)
-
18 Jun 2025
uxaenrwagn = gjulszlomk vfdffqqiir (iqvtqeiosw, kjcmdbzfhm - qcntimtrrp)
Phase 3
301
ngvbulstjm(jeghcnmexn) = csmvlkdgsp ddfrwgmnuk (htdauxqzhq )
Positive
30 May 2025
Placebo
ngvbulstjm(jeghcnmexn) = edsrtstrka ddfrwgmnuk (htdauxqzhq )
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