Reported Reactions

Drugs

Brand name · Gabapentin

Neurontin: adverse event reports filed with FDA

22,890 reports list it as a suspect or interacting product, 2004–2026. Also reported as Neurontin Tablets, Neurontin Cap.

22,890
reports as suspect product
0.1% of all reports · about 1,018 a year
163
reports, 12 months to June 2026
169 in the 12 months before
57.7%
marked serious by the reporter
57.4% across all reports
5.8%
record death among outcomes, as reported
1,317 reports · not verified by FDA

Between January 2004 and June 2026, 22,890 adverse event reports received by FDA list the brand name Neurontin (gabapentin) as a suspect or interacting product. Reports that mention it only as a concomitant medication (47,992) are left out of every figure here.

In the 12 months to June 2026, 163 reports listed it, close to the 169 of 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 1,018 reports a year and 0.1% 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 drug ineffective (17.2%), drug hypersensitivity (12.5%) and pain (7%). A report can list several reactions, so shares add to more than 100%; 1,982 different terms appear across these reports. Drug ineffective is recorded in 17.2% of these reports, against 6.3% of all reports in the database.

57.7% of the reports are marked serious by the reporter; 5.8% record death among the outcomes and 16.4% record hospitalisation, as reported. 46.9% of the reports came from consumers, and the largest patient age group is 45 to 64 (24.2%). 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

02345Jul 2021: 26Aug 2021: 28Sep 2021: 10Oct 2021: 28Nov 2021: 21Dec 2021: 312022Jan 2022: 18Feb 2022: 22Mar 2022: 29Apr 2022: 45May 2022: 21Jun 2022: 30Jul 2022: 33Aug 2022: 13Sep 2022: 18Oct 2022: 15Nov 2022: 7Dec 2022: 402023Jan 2023: 24Feb 2023: 12Mar 2023: 17Apr 2023: 13May 2023: 7Jun 2023: 13Jul 2023: 11Aug 2023: 32Sep 2023: 16Oct 2023: 12Nov 2023: 18Dec 2023: 332024Jan 2024: 23Feb 2024: 16Mar 2024: 13Apr 2024: 17May 2024: 13Jun 2024: 9Jul 2024: 25Aug 2024: 10Sep 2024: 8Oct 2024: 13Nov 2024: 8Dec 2024: 132025Jan 2025: 19Feb 2025: 16Mar 2025: 24Apr 2025: 18May 2025: 6Jun 2025: 9Jul 2025: 8Aug 2025: 13Sep 2025: 7Oct 2025: 14Nov 2025: 27Dec 2025: 142026Jan 2026: 9Feb 2026: 8Mar 2026: 26Apr 2026: 10May 2026: 14Jun 2026: 13

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

01,0712,1412004: 98220042005: 1,4882006: 1,3772007: 1,01220072008: 4752009: 3932010: 1,92320102011: 1,3122012: 2,1412013: 2,11120132014: 1,8112015: 1,6442016: 1,45720162017: 1,1002018: 1,1432019: 90820192020: 3962021: 2952022: 29120222023: 2082024: 1682025: 17520252026: 80

2026 covers reports received through June 2026 only.

Reactions recorded in the reports

share of Neurontin reports recording the termall reports in the database

  1. Drug ineffectivethe medicine did not work as expected17.2%3,939
  2. Drug hypersensitivityan allergic-type reaction to a medicine12.5%2,851
  3. Painpain, site not specified7%1,598
  4. Dizzinesslight-headedness or unsteadiness5.5%1,261
  5. Somnolencedrowsiness5.1%1,162
  6. Depressionlow mood4.5%1,035
  7. Suicidal ideationthoughts of suicide4.4%1,017
  8. Off label useused for a purpose or in a way not on the label4.4%1,007
  9. Feeling abnormalfeeling odd or not right4.3%978
  10. Fatiguetiredness3.9%886
  11. Suicide attempta suicide attempt3.7%851
  12. Headachehead pain3.7%846
  13. Nauseafeeling sick3.5%809
  14. Malaisegeneral feeling of being unwell3.4%787
  15. Weight increasedweight gain3.4%785
  16. Insomniadifficulty sleeping3.4%768
  17. Falla fall3.3%762
  18. Completed suicidedeath by suicide2.9%657
  19. Amnesiamemory loss2.9%654
  20. Anxietyanxiety2.8%648
  21. Pain in extremitypain in an arm or leg2.8%647
  22. Confusional stateconfusion2.7%609
  23. Tremorshaking2.5%564
  24. Condition aggravatedthe condition being treated got worse2.4%552
  25. Convulsion2.3%516
  26. Gait disturbancedifficulty walking2.2%495
  27. Memory impairmentmemory problems2.1%492
  28. Vision blurredblurred vision2.1%473
  29. Astheniaweakness or lack of energy2%468

Top 30 of 1,982 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

Death5.8%1,317
Life-threatening2%460
Hospitalisation (initial or prolonged)16.4%3,756
Disability2.9%656
Congenital anomaly0.3%74
Other serious45%10,290
Not serious42.3%9,681

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%42
2 to 110.4%85
12 to 170.4%102
18 to 4410.1%2,320
45 to 6424.2%5,541
65 to 749.3%2,129
75 and over7.6%1,749
Age not given47.7%10,922

Patient sex

Female61.4%14,059
Male31.5%7,205
Not given7.1%1,626

Who reported

Physician21.9%5,016
Pharmacist4%920
Other health professional12.9%2,961
Lawyer3.7%836
Consumer or non-health professional46.9%10,745
Not given10.5%2,412

Age and sex as stated in the report; the reporter's qualification is the primary source recorded by FDA. 78.2% of reports give the United States as the country of the event or reporter.

Reason for use recorded

Indication as recorded (MedDRA)ReportsShare
Neuralgia1,5796.9%
Pain1,3916.1%
Neuropathy peripheral1,3445.9%
Ill-defined disorder6803%
Fibromyalgia5712.5%
Diabetic neuropathy4662%

The indication field is filled in by the reporter and is often blank; shares are of all 22,890 reports.

Drugs most often listed in the same reports

Drug (any role in the report)ReportsShare of Neurontin reports
Lyrica2,41210.5%
Gabapentin1,1645.1%
Lipitor7933.5%
Cymbalta7613.3%
Aspirin6412.8%
Celebrex6312.8%
Lisinopril6202.7%
Xanax6082.7%
Zoloft4982.2%
Synthroid4622%

Other products listed in reports where Neurontin 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

MeasureNeurontinAll reports
Reports as suspect product22,89020,646,523
Share of that pool—0.1%
Reports, latest 12 months1631,332,454
Marked serious57.7%57.4%
Death recorded among outcomes, per 1,000 reports5891
Hospitalisation recorded, per 1,000 reports164213
Consumer-filed share46.9%45.8%
Top term, share of reportsDrug ineffective 17.2%6.3%

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 Neurontin reports

How many adverse event reports has FDA received for Neurontin?

22,890 reports list Neurontin as a suspect or interacting product in the openFDA FAERS release of 28 Sep 2026, covering reports received through June 2026. 163 of them arrived in the latest 12 months. Another 47,992 list it only as a concomitant medication.

What reactions are recorded in Neurontin reports?

drug ineffective (17.2%), drug hypersensitivity (12.5%), pain (7%), dizziness (5.5%) and drug ineffective for unapproved indication (5.2%). 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 Neurontin was responsible.

How serious are the reports?

57.7% are marked serious by the reporter. Among the outcomes recorded, 5.8% of reports include death and 16.4% 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 (46.9%), physician (21.9%) and other health professional (12.9%). Most reports reach FDA through the manufacturer, which must forward reports it receives.

Are reports for Neurontin rising?

163 reports in the 12 months to June 2026, close to the 169 of 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 Neurontin 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 Neurontin?

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 Neurontin as a suspect or interacting product; reports listing it only as a concomitant medication (47,992) 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.