Reported Reactions

Drugs

Brand name · Eslicarbazepine acetate

Aptiom: adverse event reports filed with FDA

1,942 reports list it as a suspect or interacting product, 2014–2026.

1,942
reports as suspect product
0% of all reports · about 157 a year
54
reports, 12 months to June 2026
109 in the 12 months before
63.3%
marked serious by the reporter
57.4% across all reports
2.4%
record death among outcomes, as reported
46 reports · not verified by FDA

Between March 2014 and June 2026, 1,942 adverse event reports received by FDA list the brand name Aptiom (eslicarbazepine acetate) as a suspect or interacting product. Reports that mention it only as a concomitant medication (545) are left out of every figure here.

In the 12 months to June 2026, 54 reports listed it, down 50% from 109 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 157 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 MedDRA terms listed most often are seizure (36.6%), off label use (9.1%) and dizziness (7.5%). A report can list several reactions, so shares add to more than 100%; 315 different terms appear across these reports. Seizure is recorded in 36.6% of these reports, against 0.5% of all reports in the database.

63.3% of the reports are marked serious by the reporter; 2.4% record death among the outcomes and 11.7% record hospitalisation, as reported. 80.8% of the reports came from consumers, and the largest patient age group is 18 to 44 (14.3%). 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

02039Jul 2021: 39Aug 2021: 10Sep 2021: 12Oct 2021: 13Nov 2021: 12Dec 2021: 82022Jan 2022: 16Feb 2022: 14Mar 2022: 20Apr 2022: 10May 2022: 5Jun 2022: 9Jul 2022: 4Aug 2022: 15Sep 2022: 5Oct 2022: 9Nov 2022: 6Dec 2022: 152023Jan 2023: 15Feb 2023: 7Mar 2023: 9Apr 2023: 10May 2023: 6Jun 2023: 9Jul 2023: 13Aug 2023: 10Sep 2023: 24Oct 2023: 14Nov 2023: 10Dec 2023: 122024Jan 2024: 38Feb 2024: 24Mar 2024: 15Apr 2024: 11May 2024: 13Jun 2024: 13Jul 2024: 17Aug 2024: 15Sep 2024: 9Oct 2024: 11Nov 2024: 5Dec 2024: 72025Jan 2025: 13Feb 2025: 8Mar 2025: 10Apr 2025: 5May 2025: 6Jun 2025: 3Jul 2025: 3Aug 2025: 2Sep 2025: 3Oct 2025: 6Nov 2025: 3Dec 2025: 12026Jan 2026: 7Feb 2026: 1Mar 2026: 3Apr 2026: 22May 2026: 2Jun 2026: 1

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

01342672014: 1620142015: 922016: 10720162017: 2022018: 25720182019: 2672020: 19720202021: 2602022: 12820222023: 1392024: 17820242025: 632026: 362026

2026 covers reports received through June 2026 only.

Reactions recorded in the reports

share of Aptiom reports recording the termall reports in the database

  1. Seizurea fit or convulsion36.6%710
  2. Off label useused for a purpose or in a way not on the label9.1%177
  3. Dizzinesslight-headedness or unsteadiness7.5%146
  4. Drug ineffectivethe medicine did not work as expected6.5%126
  5. Hyponatraemialow blood sodium6%116
  6. Somnolencedrowsiness5.6%108
  7. Headachehead pain5.1%99
  8. Fatiguetiredness4.9%96
  9. Rashskin rash3.8%74
  10. Inappropriate schedule of product administrationthe product was taken at the wrong times3.7%72
  11. Feeling abnormalfeeling odd or not right3.7%71
  12. Memory impairmentmemory problems3.7%71
  13. Falla fall3.2%62
  14. Nauseafeeling sick3%58
  15. Malaisegeneral feeling of being unwell2.6%50
  16. Insomniadifficulty sleeping2.5%49
  17. Confusional stateconfusion2.3%45
  18. Suicidal ideationthoughts of suicide2.3%45
  19. Anxietyanxiety2.3%44
  20. Gait disturbancedifficulty walking2.1%41
  21. Underdoseless than the intended dose2%39
  22. Vomitingbeing sick2%39
  23. Tremorshaking2%38
  24. Balance disorderproblems with balance1.9%37
  25. Depressionlow mood1.9%37
  26. Drug interactionan interaction between medicines1.8%35

Top 30 of 315 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

Death2.4%46
Life-threatening3.2%62
Hospitalisation (initial or prolonged)11.7%227
Disability0.8%15
Congenital anomaly0.2%3
Other serious59.4%1,153
Not serious36.7%713

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 20.2%3
2 to 111.9%36
12 to 172.1%41
18 to 4414.3%277
45 to 6412.2%237
65 to 743.5%68
75 and over2.6%50
Age not given63.3%1,230

Patient sex

Female43.6%847
Male30.1%584
Not given26.3%511

Who reported

Physician10.6%205
Pharmacist1.1%22
Other health professional6.8%132
Lawyer0%0
Consumer or non-health professional80.8%1,570
Not given0.7%13

Age and sex as stated in the report; the reporter's qualification is the primary source recorded by FDA. 95.2% of reports give the United States as the country of the event or reporter.

Reason for use recorded

Indication as recorded (MedDRA)ReportsShare
Seizure33817.4%
Epilepsy23712.2%
Partial seizures1869.6%
Trigeminal neuralgia140.7%
New onset refractory status epilepticus130.7%
Complex partial seizures50.3%

The indication field is filled in by the reporter and is often blank; shares are of all 1,942 reports.

Drugs most often listed in the same reports

Drug (any role in the report)ReportsShare of Aptiom reports
Keppra1769.1%
Vimpat1095.6%
Depakote713.7%
Lamotrigine703.6%
Lamictal623.2%
Levetiracetam613.1%
Clobazam572.9%
Dilantin562.9%
Xcopri562.9%
Fycompa482.5%

Other products listed in reports where Aptiom 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

MeasureAptiomAll reports
Reports as suspect product1,94220,646,523
Share of that pool—0%
Reports, latest 12 months541,332,454
Marked serious63.3%57.4%
Death recorded among outcomes, per 1,000 reports2491
Hospitalisation recorded, per 1,000 reports117213
Consumer-filed share80.8%45.8%
Top term, share of reportsSeizure 36.6%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 Aptiom reports

How many adverse event reports has FDA received for Aptiom?

1,942 reports list Aptiom as a suspect or interacting product in the openFDA FAERS release of 28 Sep 2026, covering reports received through June 2026. 54 of them arrived in the latest 12 months. Another 545 list it only as a concomitant medication.

What reactions are recorded in Aptiom reports?

seizure (36.6%), off label use (9.1%), dizziness (7.5%), drug ineffective (6.5%) and hyponatraemia (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 Aptiom was responsible.

How serious are the reports?

63.3% are marked serious by the reporter. Among the outcomes recorded, 2.4% of reports include death and 11.7% 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 (80.8%), physician (10.6%) and other health professional (6.8%). Most reports reach FDA through the manufacturer, which must forward reports it receives.

Are reports for Aptiom rising?

54 reports in the 12 months to June 2026, down 50% from 109 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 Aptiom 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 Aptiom?

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 Aptiom as a suspect or interacting product; reports listing it only as a concomitant medication (545) 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.