Reported Reactions

Drugs › Atypical antipsychotic

Brand name · Olanzapine and samidorphan l-malate

Lybalvi: adverse event reports filed with FDA

1,513 reports list it as a suspect or interacting product, 2021–2026. Class: Atypical antipsychotic.

1,513
reports as suspect product
0% of all reports · about 325 a year
303
reports, 12 months to June 2026
269 in the 12 months before
21%
marked serious by the reporter
70.7% across the class
0.9%
record death among outcomes, as reported
14 reports · not verified by FDA

1,513 adverse event reports received by FDA list the brand name Lybalvi (olanzapine and samidorphan l-malate) as a suspect or interacting product, from November 2021 to June 2026. A further 69 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, 303 reports listed it, up 13% from 269 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 325 reports a year and 0% of the 20,646,523 reports in the database, and 0.2% 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 off label use (18.8%), contraindicated product administered (7.1%) and dizziness (5.5%). A report can list several reactions, so shares add to more than 100%; 250 different terms appear across these reports. Off label use is recorded in 18.8% of these reports, a larger share than in the median atypical antipsychotic drug (6.9%).

21% of the reports are marked serious by the reporter (70.7% across the class); 0.9% record death among the outcomes and 10.1% record hospitalisation, as reported. 51.9% of the reports came from other health professionals, and the largest patient age group is 18 to 44 (23.3%). 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

02957Jul 2021: 0Aug 2021: 0Sep 2021: 0Oct 2021: 0Nov 2021: 29Dec 2021: 212022Jan 2022: 19Feb 2022: 30Mar 2022: 27Apr 2022: 53May 2022: 34Jun 2022: 29Jul 2022: 34Aug 2022: 19Sep 2022: 18Oct 2022: 41Nov 2022: 31Dec 2022: 202023Jan 2023: 21Feb 2023: 24Mar 2023: 28Apr 2023: 30May 2023: 43Jun 2023: 29Jul 2023: 31Aug 2023: 57Sep 2023: 12Oct 2023: 24Nov 2023: 28Dec 2023: 162024Jan 2024: 11Feb 2024: 37Mar 2024: 33Apr 2024: 33May 2024: 45Jun 2024: 34Jul 2024: 16Aug 2024: 12Sep 2024: 21Oct 2024: 20Nov 2024: 23Dec 2024: 262025Jan 2025: 22Feb 2025: 18Mar 2025: 36Apr 2025: 39May 2025: 25Jun 2025: 11Jul 2025: 36Aug 2025: 20Sep 2025: 41Oct 2025: 22Nov 2025: 23Dec 2025: 252026Jan 2026: 12Feb 2026: 10Mar 2026: 38Apr 2026: 26May 2026: 39Jun 2026: 11

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

01783552021: 5020212022: 35520222023: 34320232024: 31120242025: 31820252026: 1362026

2026 covers reports received through June 2026 only.

Reactions recorded in the reports

share of Lybalvi reports recording the termmedian drug in atypical antipsychotic

  1. Off label useused for a purpose or in a way not on the label18.8%285
  2. Dizzinesslight-headedness or unsteadiness5.5%83
  3. Weight increasedweight gain5.5%83
  4. Insomniadifficulty sleeping4.6%70
  5. Weight decreasedweight loss4.3%65
  6. Nauseafeeling sick3.9%59
  7. Vomitingbeing sick3.9%59
  8. Feeling abnormalfeeling odd or not right3.6%54
  9. Somnolencedrowsiness3.6%54
  10. Decreased appetitereduced appetite3.5%53
  11. Sedationdrowsiness from a medicine3.4%51
  12. Fatiguetiredness3.2%49
  13. Anxietyanxiety3%45
  14. Drug withdrawal syndromesymptoms on stopping a medicine2.9%44
  15. Tremorshaking2.6%39
  16. Hypersomniasleeping too much2.5%38
  17. Drug screen false positive2.4%37
  18. Agitationrestlessness2.1%32
  19. Drug ineffectivethe medicine did not work as expected1.8%27
  20. Psychotic disordera loss of contact with reality1.8%27
  21. Malaisegeneral feeling of being unwell1.7%26
  22. Confusional stateconfusion1.6%24
  23. Diarrhoealoose or frequent stools1.6%24
  24. Lethargysluggishness1.5%22
  25. Oedema peripheralswelling of the legs, ankles or hands1.3%20
  26. Restlessnessrestlessness1.3%20
  27. Depressionlow mood1.3%19

Top 30 of 250 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

Death0.9%14
Life-threatening1.9%28
Hospitalisation (initial or prolonged)10.1%153
Disability0.3%4
Congenital anomaly0%0
Other serious11.6%176
Not serious79%1,196

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%0
2 to 110.3%4
12 to 171.3%20
18 to 4423.3%353
45 to 6410.5%159
65 to 742.4%37
75 and over0.2%3
Age not given61.9%937

Patient sex

Female49%742
Male34.2%518
Not given16.7%253

Who reported

Physician21.9%332
Pharmacist6.3%95
Other health professional51.9%786
Lawyer0%0
Consumer or non-health professional19.3%292
Not given0.5%8

Age and sex as stated in the report; the reporter's qualification is the primary source recorded by FDA. 99.9% of reports give the United States as the country of the event or reporter.

Reason for use recorded

Indication as recorded (MedDRA)ReportsShare
Bipolar disorder18312.1%
Bipolar i disorder18112%
Schizophrenia15210%
Psychotic disorder231.5%
Schizoaffective disorder bipolar type231.5%
Bipolar ii disorder201.3%

The indication field is filled in by the reporter and is often blank; shares are of all 1,513 reports.

In context

MeasureLybalviAtypical antipsychoticAll reports
Reports as suspect product1,513683,68020,646,523
Share of that pool—0.2%0%
Reports, latest 12 months303—1,332,454
Marked serious21%70.7%57.4%
Death recorded among outcomes, per 1,000 reports912191
Hospitalisation recorded, per 1,000 reports101304213
Consumer-filed share19.3%34%45.8%
Top term, share of reportsOff label use 18.8%median 6.9%4.1%

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%
Zyprexabrand26,46912178.4%
Invega Sustennabrand23,6481,51335.8%
Quetiapine fumarategeneric19,5681,69790.7%
Invegabrand16,67223835.5%
Latudabrand16,08518340.7%

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 Lybalvi reports

How many adverse event reports has FDA received for Lybalvi?

1,513 reports list Lybalvi as a suspect or interacting product in the openFDA FAERS release of 28 Sep 2026, covering reports received through June 2026. 303 of them arrived in the latest 12 months. Another 69 list it only as a concomitant medication.

What reactions are recorded in Lybalvi reports?

off label use (18.8%), contraindicated product administered (7.1%), dizziness (5.5%), weight increased (5.5%) and insomnia (4.6%). 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 Lybalvi was responsible.

How serious are the reports?

21% are marked serious by the reporter. Among the outcomes recorded, 0.9% of reports include death and 10.1% 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?

other health professional (51.9%), physician (21.9%) and consumer or non-health professional (19.3%). Most reports reach FDA through the manufacturer, which must forward reports it receives.

Are reports for Lybalvi rising?

303 reports in the 12 months to June 2026, up 13% from 269 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 Lybalvi 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 Lybalvi?

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 Lybalvi as a suspect or interacting product; reports listing it only as a concomitant medication (69) 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.