Reported Reactions

Drugs › Atypical antipsychotic

Brand name · Olanzapine

Zyprexa: adverse event reports filed with FDA

26,469 reports list it as a suspect or interacting product, 2004–2026. Class: Atypical antipsychotic. Also reported as Zyprexa Tablet, Zyprexa 10mg.

26,469
reports as suspect product
0.1% of all reports · about 1,177 a year
121
reports, 12 months to June 2026
155 in the 12 months before
78.4%
marked serious by the reporter
70.7% across the class
11.4%
record death among outcomes, as reported
3,020 reports · not verified by FDA

26,469 adverse event reports received by FDA list the brand name Zyprexa (olanzapine) as a suspect or interacting product, from January 2004 to June 2026. A further 12,726 reports list it only as a concomitant medication, and those are not counted in the figures on this page.

In the 12 months to June 2026, 121 reports listed it, down 22% from 155 in the 12 months before. FDA releases FAERS data quarterly, so the newest months are incomplete and grow in later releases. Over its reporting history that is about 1,177 reports a year and 0.1% of the 20,646,523 reports in the database, and 3.9% of the reports for the atypical antipsychotic class. How many people take it is not in the data, so a count is not a rate of occurrence.

The reactions recorded most often are diabetes mellitus (14.4%), weight increased (13.5%) and off label use (5.2%). A report can list several reactions, so shares add to more than 100%; 2,259 different terms appear across these reports. Diabetes mellitus is recorded in 14.4% of these reports, a larger share than in the median atypical antipsychotic drug (0.4%).

78.4% of the reports are marked serious by the reporter (70.7% across the class); 11.4% record death among the outcomes and 37.6% record hospitalisation, as reported. 44.9% of the reports came from consumers, and the largest patient age group is 18 to 44 (27.8%). FDA states that "a causal relationship cannot be established between product and reactions listed in a report" and that for any given report "there is no certainty that a suspected drug caused the event."

Reports by month, five years

03978Jul 2021: 41Aug 2021: 27Sep 2021: 25Oct 2021: 45Nov 2021: 31Dec 2021: 472022Jan 2022: 27Feb 2022: 23Mar 2022: 46Apr 2022: 61May 2022: 16Jun 2022: 78Jul 2022: 28Aug 2022: 38Sep 2022: 40Oct 2022: 31Nov 2022: 77Dec 2022: 482023Jan 2023: 37Feb 2023: 33Mar 2023: 41Apr 2023: 38May 2023: 27Jun 2023: 46Jul 2023: 28Aug 2023: 18Sep 2023: 27Oct 2023: 19Nov 2023: 17Dec 2023: 172024Jan 2024: 19Feb 2024: 25Mar 2024: 10Apr 2024: 16May 2024: 17Jun 2024: 5Jul 2024: 21Aug 2024: 13Sep 2024: 14Oct 2024: 9Nov 2024: 6Dec 2024: 82025Jan 2025: 7Feb 2025: 9Mar 2025: 22Apr 2025: 15May 2025: 14Jun 2025: 17Jul 2025: 15Aug 2025: 13Sep 2025: 10Oct 2025: 15Nov 2025: 7Dec 2025: 72026Jan 2026: 5Feb 2026: 6Mar 2026: 11Apr 2026: 19May 2026: 7Jun 2026: 6

Reports by the month FDA received them. FDA releases FAERS data quarterly, so the newest months are incomplete and grow in later releases.

By year received

02,5095,0182004: 1,06620042005: 1,7912006: 2,6412007: 2,46920072008: 9782009: 1,7572010: 1,38820102011: 1,6402012: 1,0342013: 69820132014: 7152015: 5,0182016: 66720162017: 8122018: 7312019: 74120192020: 6212021: 4722022: 51320222023: 3482024: 1632025: 15120252026: 54

2026 covers reports received through June 2026 only.

Reactions recorded in the reports

share of Zyprexa reports recording the termmedian drug in atypical antipsychotic

  1. Diabetes mellitusdiabetes14.4%3,809
  2. Weight increasedweight gain13.5%3,576
  3. Off label useused for a purpose or in a way not on the label5.2%1,381
  4. Pancreatitisinflammation of the pancreas5%1,336
  5. Drug ineffectivethe medicine did not work as expected4.9%1,292
  6. Hypertensionhigh blood pressure4.8%1,268
  7. Overdosea dose above the recommended amount4.1%1,075
  8. Suicide attempta suicide attempt3.9%1,032
  9. Blood glucose increasedraised blood sugar reading3.8%1,019
  10. Hyperglycaemiahigh blood sugar3.7%970
  11. Sedationdrowsiness from a medicine3.5%937
  12. Anxietyanxiety3.5%917
  13. Somnolencedrowsiness3.5%916
  14. General physical health deteriorationgeneral decline in health3.2%843
  15. Insomniadifficulty sleeping3.1%809
  16. Deaththe patient died; cause not stated by this term3%784
  17. Injurya physical injury2.9%755
  18. Blood cholesterol increasedraised cholesterol2.8%746
  19. Dyskinesiainvoluntary movements2.8%744
  20. Diabetic ketoacidosisa serious complication of diabetes with acid build-up2.8%732
  21. Obesity2.7%724
  22. Depressionlow mood2.7%707
  23. Condition aggravatedthe condition being treated got worse2.7%705
  24. Fatiguetiredness2.5%668
  25. Tremorshaking2.5%666
  26. Drug interactionan interaction between medicines2.5%663
  27. Falla fall2.4%648

Top 30 of 2,259 MedDRA preferred terms recorded across these reports, with a plain-language gloss where one is available. One report can record several terms. The hollow bar is the median share across the 37 drugs in the atypical antipsychotic class; it describes the reports, not the patients. FDA states that adverse event reports "represent a small percentage of total usage numbers of a product", that "common products may have a higher number of adverse events due to the higher total number of people using the product", and that the data "by themselves are not an indicator of the safety profile of the drug or biologic."

Outcomes recorded

Death11.4%3,020
Life-threatening5.7%1,499
Hospitalisation (initial or prolonged)37.6%9,946
Disability3.5%925
Congenital anomaly0.7%198
Other serious46.1%12,200
Not serious21.6%5,723

Outcome flags as the reporter set them; a report can carry several, and "other serious" is FDA's own category for serious reports outside the named outcomes. Grey bar: all 683,680 reports in the class. FDA has not verified any outcome and states that the reports "cannot be used to estimate the incidence of these events."

Patients and reporters

Patient age

Under 20.7%188
2 to 110.8%209
12 to 171.8%484
18 to 4427.8%7,351
45 to 6419.5%5,149
65 to 745.3%1,400
75 and over4.7%1,254
Age not given39.4%10,434

Patient sex

Female47.3%12,522
Male46.5%12,304
Not given6.2%1,643

Who reported

Physician29.1%7,706
Pharmacist2.8%743
Other health professional8.9%2,352
Lawyer9%2,383
Consumer or non-health professional44.9%11,894
Not given5.3%1,391

Age and sex as stated in the report; the reporter's qualification is the primary source recorded by FDA. 51.1% of reports give the United States as the country of the event or reporter.

Reason for use recorded

Indication as recorded (MedDRA)ReportsShare
Schizophrenia3,41812.9%
Bipolar disorder2,2008.3%
Depression1,3285%
Psychotic disorder1,0684%
Schizoaffective disorder4141.6%
Schizophrenia, paranoid type3561.3%

The indication field is filled in by the reporter and is often blank; shares are of all 26,469 reports.

Drugs most often listed in the same reports

Drug (any role in the report)ReportsShare of Zyprexa reports
Risperdal2,3378.8%
Seroquel2,3208.8%
Abilify1,8847.1%
Depakote1,2424.7%
Risperidone1,2074.6%
Olanzapine9213.5%
Haldol8743.3%
Lorazepam8473.2%
Clonazepam7102.7%
Zoloft7012.6%

Other products listed in reports where Zyprexa is a suspect product, whatever their own role. Co-listing means the two were recorded together; it says nothing about either product's part in the event. Only the 2,500 most-reported names are counted here.

In context

MeasureZyprexaAtypical antipsychoticAll reports
Reports as suspect product26,469683,68020,646,523
Share of that pool—3.9%0.1%
Reports, latest 12 months121—1,332,454
Marked serious78.4%70.7%57.4%
Death recorded among outcomes, per 1,000 reports11412191
Hospitalisation recorded, per 1,000 reports376304213
Consumer-filed share44.9%34%45.8%
Top term, share of reportsDiabetes mellitus 14.4%median 0.4%0.4%

Shares are of reports, not of patients treated. The number of people taking a product is not in the data, so none of these figures is a rate, and differences between columns reflect who takes a product, who reports and how long it has been sold. FDA states that adverse event reports "represent a small percentage of total usage numbers of a product", that "common products may have a higher number of adverse events due to the higher total number of people using the product", and that the data "by themselves are not an indicator of the safety profile of the drug or biologic."

Other drugs in the atypical antipsychotic class

DrugName typeReportsLatest 12 monthsMarked serious
Clozapinegeneric73,0233,25293.4%
Abilifybrand54,64562558%
Risperdalgeneric54,45488248.4%
Nuplazidbrand53,7539,60250.6%
Quetiapinegeneric52,3884,19097.6%
Seroquelbrand52,27226562.9%
Clozarilbrand47,9143,08898.4%
Olanzapinegeneric46,8374,08795.3%
Risperidonegeneric44,9622,51176.9%
Aripiprazolegeneric30,1453,10287.8%
Invega Sustennabrand23,6481,51335.8%
Quetiapine fumarategeneric19,5681,69790.7%
Invegabrand16,67223835.5%
Latudabrand16,08518340.7%
Rexultibrand12,68363032.3%

Ordered by report count for navigation only. FDA states that adverse event reports "represent a small percentage of total usage numbers of a product", that "common products may have a higher number of adverse events due to the higher total number of people using the product", and that the data "by themselves are not an indicator of the safety profile of the drug or biologic." A brand and its generic are separate rows because reporters name them separately.

Questions about Zyprexa reports

How many adverse event reports has FDA received for Zyprexa?

26,469 reports list Zyprexa as a suspect or interacting product in the openFDA FAERS release of 28 Sep 2026, covering reports received through June 2026. 121 of them arrived in the latest 12 months. Another 12,726 list it only as a concomitant medication.

What reactions are recorded in Zyprexa reports?

diabetes mellitus (14.4%), weight increased (13.5%), off label use (5.2%), pancreatitis (5%) and drug ineffective (4.9%). These are MedDRA preferred terms coded from what the reporter described; a report can list several, and a term's presence is not a finding that Zyprexa was responsible.

How serious are the reports?

78.4% are marked serious by the reporter. Among the outcomes recorded, 11.4% of reports include death and 37.6% include hospitalisation. FDA has not verified these outcomes and states that the reports "cannot be used to estimate the incidence" of the events.

Who files these reports?

consumer or non-health professional (44.9%), physician (29.1%) and lawyer (9%). Most reports reach FDA through the manufacturer, which must forward reports it receives.

Are reports for Zyprexa rising?

121 reports in the 12 months to June 2026, down 22% from 155 in the 12 months before. FDA releases FAERS data quarterly, so the newest months are incomplete and grow in later releases. Counts also move with how many people take a product, its time on the market and publicity.

Do these reports show that Zyprexa was responsible for these reactions?

No. FDA states that "a causal relationship cannot be established between product and reactions listed in a report" and that for any given report "there is no certainty that a suspected drug caused the event." The reaction may relate to the condition being treated, to other medicines, or to something else.

Is this a list of the side effects of Zyprexa?

No. It is a count of what was reported to FDA. The adverse reactions observed in clinical studies are printed on the FDA-approved label, which a pharmacist or clinician can go through with you.

How do I report an adverse event?

Consumers and health professionals can report to FDA through MedWatch (Form FDA 3500 online, or 1-800-FDA-1088), or to the manufacturer, which must pass reports on. See the guide on how to report.

Where this comes from. Counts are built from the openFDA Drug Adverse Event (FAERS) bulk export released 28 Sep 2026, which holds reports FDA received through 30 Jun 2026. Drug names are as reported, resolved to the brand or generic name on the FDA label where openFDA's harmonisation matched them; classes are the pharmacologic class (EPC) from the label and the National Drug Code Directory of 17 Sep 2026. A report counts here when it lists Zyprexa as a suspect or interacting product; reports listing it only as a concomitant medication (12,726) are excluded. No report narrative, lot number, patient detail or reporter identity is published. See the methodology and sources; FDA's record is authoritative, and corrections are handled within five working days.

Drug data (FAERS) through 30 Jun 2026; device data (MAUDE) through 31 Aug 2026. Not medical advice.