Reported Reactions

Drugs

Generic name

Brivaracetam: adverse event reports filed with FDA

3,928 reports list it as a suspect or interacting product, 2015–2026.

3,928
reports as suspect product
0% of all reports · about 360 a year
593
reports, 12 months to June 2026
751 in the 12 months before
95.6%
marked serious by the reporter
57.4% across all reports
5.2%
record death among outcomes, as reported
206 reports · not verified by FDA

3,928 adverse event reports received by FDA list brivaracetam, a generic name as a suspect or interacting product, from August 2015 to June 2026. A further 724 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, 593 reports listed it, down 21% from 751 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 360 reports a year and 0% of the 20,646,523 reports in the database. 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 seizure (46.7%), drug ineffective (13.7%) and off label use (13.2%). A report can list several reactions, so shares add to more than 100%; 573 different terms appear across these reports. Seizure is recorded in 46.7% of these reports, against 0.5% of all reports in the database.

95.6% of the reports are marked serious by the reporter; 5.2% record death among the outcomes and 30.2% record hospitalisation, as reported. 49.9% of the reports came from consumers, and the largest patient age group is 18 to 44 (30.3%). 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

03774Jul 2021: 21Aug 2021: 25Sep 2021: 49Oct 2021: 29Nov 2021: 40Dec 2021: 372022Jan 2022: 37Feb 2022: 21Mar 2022: 41Apr 2022: 42May 2022: 52Jun 2022: 52Jul 2022: 31Aug 2022: 60Sep 2022: 55Oct 2022: 30Nov 2022: 45Dec 2022: 492023Jan 2023: 54Feb 2023: 36Mar 2023: 52Apr 2023: 47May 2023: 56Jun 2023: 50Jul 2023: 58Aug 2023: 41Sep 2023: 50Oct 2023: 61Nov 2023: 65Dec 2023: 482024Jan 2024: 43Feb 2024: 44Mar 2024: 44Apr 2024: 56May 2024: 53Jun 2024: 51Jul 2024: 70Aug 2024: 67Sep 2024: 63Oct 2024: 58Nov 2024: 68Dec 2024: 552025Jan 2025: 66Feb 2025: 56Mar 2025: 74Apr 2025: 34May 2025: 71Jun 2025: 69Jul 2025: 39Aug 2025: 40Sep 2025: 46Oct 2025: 59Nov 2025: 65Dec 2025: 532026Jan 2026: 32Feb 2026: 50Mar 2026: 51Apr 2026: 73May 2026: 46Jun 2026: 39

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

03366722015: 320152016: 132017: 7020172018: 2202019: 23120192020: 2342021: 38920212022: 5152023: 61820232024: 6722025: 67220252026: 291

2026 covers reports received through June 2026 only.

Reactions recorded in the reports

share of Brivaracetam reports recording the termall reports in the database

  1. Seizurea fit or convulsion46.7%1,836
  2. Drug ineffectivethe medicine did not work as expected13.7%540
  3. Off label useused for a purpose or in a way not on the label13.2%517
  4. Overdosea dose above the recommended amount6.3%247
  5. Product availability issuethe product was not available6%236
  6. Fatiguetiredness5.3%210
  7. Somnolencedrowsiness5.1%202
  8. Falla fall4.9%194
  9. Product use issuea problem in how the product was used4.4%174
  10. Dizzinesslight-headedness or unsteadiness4.4%172
  11. Multiple-drug resistance4.3%170
  12. Epilepsy4.2%164
  13. Headachehead pain3.6%140
  14. Aggressionaggressive behaviour3.4%135
  15. Memory impairmentmemory problems3.3%131
  16. Maternal exposure during pregnancythe mother took the medicine during pregnancy3.3%130
  17. Anxietyanxiety3.1%122
  18. Depressionlow mood3%117
  19. Product dose omission issuea dose was missed2.9%115
  20. Irritabilityirritability2.2%87
  21. Suicidal ideationthoughts of suicide2.2%85
  22. Nauseafeeling sick2%80
  23. Tremorshaking2%80
  24. Vomitingbeing sick2%78
  25. Insomniadifficulty sleeping2%77

Top 30 of 573 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 share of all reports in the database; 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

Death5.2%206
Life-threatening3.2%124
Hospitalisation (initial or prolonged)30.2%1,187
Disability0.8%31
Congenital anomaly0.9%37
Other serious81.2%3,188
Not serious4.4%173

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 20,646,523 reports. 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%29
2 to 112.8%111
12 to 173%118
18 to 4430.3%1,190
45 to 6414.9%586
65 to 746.9%270
75 and over4.9%191
Age not given36.5%1,433

Patient sex

Female43.9%1,725
Male38.5%1,514
Not given17.5%689

Who reported

Physician26.5%1,039
Pharmacist2%79
Other health professional21.6%848
Lawyer0%0
Consumer or non-health professional49.9%1,960
Not given0.1%2

Age and sex as stated in the report; the reporter's qualification is the primary source recorded by FDA. 45.6% of reports give the United States as the country of the event or reporter.

Reason for use recorded

Indication as recorded (MedDRA)ReportsShare
Seizure1,27932.6%
Epilepsy1,26832.3%
Partial seizures2997.6%
Status epilepticus1313.3%
New onset refractory status epilepticus701.8%
Generalised tonic-clonic seizure360.9%

The indication field is filled in by the reporter and is often blank; shares are of all 3,928 reports.

Drugs most often listed in the same reports

Drug (any role in the report)ReportsShare of Brivaracetam reports
Levetiracetam86522%
Lacosamide77519.7%
Lamotrigine64716.5%
Clobazam50712.9%
Valproic acid3799.6%
Perampanel3619.2%
Topiramate3178.1%
Oxcarbazepine2897.4%
Vimpat2747%
Carbamazepine2536.4%

Other products listed in reports where Brivaracetam 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

MeasureBrivaracetamAll reports
Reports as suspect product3,92820,646,523
Share of that pool—0%
Reports, latest 12 months5931,332,454
Marked serious95.6%57.4%
Death recorded among outcomes, per 1,000 reports5291
Hospitalisation recorded, per 1,000 reports302213
Consumer-filed share49.9%45.8%
Top term, share of reportsSeizure 46.7%0.5%

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."

Questions about Brivaracetam reports

How many adverse event reports has FDA received for Brivaracetam?

3,928 reports list Brivaracetam as a suspect or interacting product in the openFDA FAERS release of 28 Sep 2026, covering reports received through June 2026. 593 of them arrived in the latest 12 months. Another 724 list it only as a concomitant medication.

What reactions are recorded in Brivaracetam reports?

seizure (46.7%), drug ineffective (13.7%), off label use (13.2%), therapy interrupted (8.4%) and overdose (6.3%). 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 Brivaracetam was responsible.

How serious are the reports?

95.6% are marked serious by the reporter. Among the outcomes recorded, 5.2% of reports include death and 30.2% 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 (49.9%), physician (26.5%) and other health professional (21.6%). Most reports reach FDA through the manufacturer, which must forward reports it receives.

Are reports for Brivaracetam rising?

593 reports in the 12 months to June 2026, down 21% from 751 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 Brivaracetam 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 Brivaracetam?

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 Brivaracetam as a suspect or interacting product; reports listing it only as a concomitant medication (724) 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.