Reported Reactions

Adverse event reports that FDA received

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Neurontin (gabapentin) adverse event reports that FDA received

Name type
Brand name
Generic name
Gabapentin
Also reported as
Neurontin Tablets, Neurontin Cap

What a report is

A report is not proof that the drug was the cause of the event.

FDA says:

Adverse event reports submitted to FDA do not undergo extensive validation or verification. Therefore, a causal relationship cannot be established between product and reactions listed in a report. While a suspected relationship may exist, it is not medically validated and should not be the sole source of information for clinical decision making or other assumptions about the safety or efficacy of a product. Additionally, it is important to remember that adverse event reports represent a small percentage of total usage numbers of a product. Common products may have a higher number of adverse events due to the higher total number of people using the product.

Source: openFDA, Drug Adverse Event Overview, section "Responsible use of the data". The site read the page on . The data have the reports that FDA received through .

FDA also says:

There is no certainty that the reported event (adverse event or medication error) was actually due to the product. FDA does not require that a causal relationship between a product and event be proven, and reports do not always contain enough detail to properly evaluate an event. The information in these reports has not been scientifically or otherwise verified as to a cause and effect relationship and cannot be used to estimate the incidence of these events.

Source: openFDA, Drug Adverse Event Overview. The site read the page on .

Do not rely on openFDA to make decisions regarding medical care. While we make every effort to ensure that data is accurate, you should assume all results are unvalidated.

Source: openFDA, Response of the drug event API (meta.disclaimer). The site read the page on .

Not medical advice. This site counts what was reported to FDA. Questions about a medicine or device belong with a pharmacist or clinician.

Drug reports received through . Device reports have a separate cutoff, 30 Sep 2026. Why a report count is not a rate.

Reports on file

From January 2004 to June 2026, FDA received 22,890 adverse event reports that name Neurontin. In these reports the drug is a suspect or interacting product.

In the same period, 47,992 further reports name it only as a concomitant medicine. The counts on this page do not include these reports.

FDA received 163 reports in the 12 months to June 2026 and 169 in the 12 months before. FDA releases FAERS data every quarter, so the newest months are not complete. They grow in later releases.

Of the 1,332,454 drug reports that FDA received in the 12 months to June 2026, 163 (under 0.1%) name Neurontin. Reports for female patients were 61.4% of the reports that name Neurontin and 52.7% of all drug reports.

The number of people who use the product is not in the data. A count is not a rate. A count of reports is not a count of events or of patients, because one event can have more than one report.

There are many instances of duplicative reports and some reports do not contain all the necessary information.

Source: FDA, FDA Adverse Event Monitoring System (AEMS) Public Dashboard. Content current as of . The site read the page on .

Suspect product

FDA records each drug in a report as suspect, concomitant or interacting. This page counts the reports in which Neurontin is suspect or interacting. FDA says:

Any number of the drugs may be marked as suspect if thought to be responsible for one or more of the reactions, but that information is not validated.

Source: openFDA, Drug Adverse Event Overview. The site read the page on .

Data version

openFDA FAERS release of 29 Oct 2026. Reports received through 30 Jun 2026.

Since the last update

FDA says:

Many factors can influence whether or not an event will be reported, such as the time a product has been marketed and publicity about an event.

Source: openFDA, Drug Adverse Event Overview. The site read the page on .

The information in these reports cannot be used to estimate the incidence (occurrence rates) of the events reported.

Source: FDA, FDA Adverse Event Monitoring System (AEMS) Public Dashboard. Content current as of . The site read the page on .

The latest update of the FDA data, recorded on , changed no count of this page.

  • In April to June 2026, FDA received 37 reports that name Neurontin.
  • In January to March 2026, FDA received 43.
  • In April to June 2025, FDA received 33.

April to June 2026 is the latest closed quarter in the data. A closed quarter is a quarter for which the FDA files have most of the reports.

All updatesFeed of updates (RSS)

Reaction lookup

These are the reaction terms that the reports record, with the number of reports for each term. Type a term or a plain word to find its count.

What this list leaves out

The table lists the 1,103 reaction terms that 5 or more reports record. A term with fewer than 5 reports is not in the table.

The site keeps reaction terms for all 22,890 reports.

The site keeps a term for a year only if two or more reports of that year record it.

So a count in the table can be lower than the count of FDA.

The table shows the first 50 of 1,103 terms.

Reaction terms in the reports that name Neurontin, most reports first
Reaction term (MedDRA) and plain meaningReportsShare of the 22,890 reports
Drug ineffectivethe medicine did not work as expected3,93917.2%
Drug hypersensitivityan allergic-type reaction (the term names a medicine)2,85112.5%
Painpain, site not specified1,5987%
Dizzinesslight-headedness or unsteadiness1,2615.5%
Drug ineffective for unapproved indication1,1995.2%
Somnolencedrowsiness1,1625.1%
Depressionlow mood1,0354.5%
Suicidal ideationthoughts of suicide1,0174.4%
Off label useused for a purpose or in a way not on the label1,0074.4%
Feeling abnormalfeeling odd or not right9784.3%
Fatiguetiredness8863.9%
Suicide attempta suicide attempt8513.7%
Headachehead pain8463.7%
Nauseafeeling sick8093.5%
Malaisegeneral feeling of being unwell7873.4%
Weight increasedweight gain7853.4%
Insomniadifficulty sleeping7683.4%
Falla fall7623.3%
Completed suicidedeath by suicide6572.9%
Amnesiamemory loss6542.9%
Anxiety6482.8%
Pain in extremitypain in an arm or leg6472.8%
Confusional stateconfusion6092.7%
Tremorshaking5642.5%
Condition aggravatedthe condition being treated got worse5522.4%
Convulsion5162.3%
Gait disturbancedifficulty walking4952.2%
Memory impairmentmemory problems4922.1%
Vision blurredblurred vision4732.1%
Astheniaweakness or lack of energy4682%
Hypoaesthesianumbness4662%
Drug interactionan interaction between medicines4482%
Overdosea dose above the recommended amount4482%
Hypertensionhigh blood pressure4371.9%
Vomitingbeing sick4371.9%
Rashskin rash4001.7%
Dyspnoeashortness of breath3961.7%
Back pain3921.7%
Product use in unapproved indicationused for a purpose not on the label3921.7%
Balance disorderproblems with balance3881.7%
Diarrhoealoose or frequent stools3811.7%
Loss of consciousnesspassing out3771.6%
Oedema peripheralswelling of the legs, ankles or hands3771.6%
Weight decreasedweight loss3691.6%
Paraesthesiatingling or pins and needles3681.6%
Muscle spasmsmuscle cramps3531.5%
Neuropathy peripheralnerve damage in hands or feet3461.5%
Product use issuea problem in how the product was used3441.5%
Cerebrovascular accidentstroke3371.5%
Drug intolerancethe medicine was not tolerated3191.4%

Download all 1,103 terms of Neurontin (CSV)

The counts add to more than 22,890 reports, because one report can record more than one term. FDA says:

No individual drug is connected to any individual reaction. When a report lists multiple drugs and multiple reactions, there is no way to conclude from the data therein that a given drug is responsible for a given reaction.

Source: openFDA, Drug Adverse Event Overview. The site read the page on .

The CSV file has the same rows and the same limits. Its last row is a note that says so.

MedDRA term

The person who codes a report selects the preferred term that agrees best with the description of the reporter. The words under a term are the plain meaning that this site gives.

Not the label

The FDA-approved label of a product lists its adverse reactions. See the official pages at the end of this page.

Same ingredient, other names

Reporters write a brand name or a generic name. Each name has its own page and its own count.

Names of Gabapentin with a page, in the order generic names, brand names, names as reported
NameName typeReports
GabapentinGeneric name74,316
GraliseBrand name3,203
Neurontin (this page)Brand name22,890

Sum of the separately reported names: 100,409. A report that names two of these names is in the sum two times. The sum is not the number of reports for the ingredient.

FDA says:

Additionally, it is important to remember that adverse event reports represent a small percentage of total usage numbers of a product. Common products may have a higher number of adverse events due to the higher total number of people using the product.

Source: openFDA, Drug Adverse Event Overview. The site read the page on .

Importantly, the AEMS data by themselves are not an indicator of the safety profile of the drug or biologic.

Source: FDA, FDA Adverse Event Monitoring System (AEMS) Public Dashboard. Content current as of . The site read the page on .

Outcomes by year

The table gives the outcomes that the reporters gave, in the terms of FDA.

Outcomes in the reports that name Neurontin, by the year of the openFDA file that holds the report

The table continues to the right.

Year of the openFDA fileReportsSeriousDeathLife-threateningHospitalization (initial or prolonged)Disability or Permanent DamageCongenital Anomaly/Birth DefectOther Serious (Important Medical Events)Not serious
20041,0891,059824133859485430
20051,5381,4903585542896899048
20061,3231,282126463258341,09441
20071,13194813231218300783183
20088525306023133233426322
20098154515428145278319364
20109056866020187284524219
20111,2849769619191231857308
20121,9211,0875811212594931834
20132,09694778102564897551,149
20141,73855946181443604241,179
20151,61653937241922813961,077
20161,4384258121741423301,013
20171,0613211215119138225740
20181,1373733019169170242764
20191,206365169144162264841
2020433235231175143179198
2021298215134808215883
202231221182264174153101
20232071343851569273
202417913342143208646
202520315078458012653
2026108936523218215

An outcome in a report is not proof that the drug was the cause. The reporter gives the outcome, and FDA does not verify it. FDA says:

The information in these reports has not been scientifically or otherwise verified as to a cause and effect relationship and cannot be used to estimate the incidence of these events.

Source: openFDA, Drug Adverse Event Overview. The site read the page on .

The six headings with the names of FDA are the outcome terms of FDA. A report can have more than one outcome. The columns Serious and Not serious are the two values of the openFDA field serious. For the value serious, openFDA gives this description:

The adverse event resulted in death, a life threatening condition, hospitalization, disability, congenital anomaly, or other serious condition

Source: openFDA, Drug adverse event fields (YAML reference). The site read the page on .

The year is the year of the openFDA file that holds the latest version of the report. It is not always the year in which FDA first received the report. The chart of the next section uses the year of first receipt. The latest year is not complete.

Reports by year and month

Reports that name Neurontin, by the year in which FDA received them
02,5005,000200420082012201620202024

The column of 2026 has an outline, because the year is not complete. It has the reports that FDA received through June 2026 only.

Show the figures of the chart as a table
Reports that name Neurontin, by the year in which FDA received them
YearReports
2004982
20051,488
20061,377
20071,012
2008475
2009393
20101,923
20111,312
20122,141
20132,111
20141,811
20151,644
20161,457
20171,100
20181,143
2019908
2020396
2021295
2022291
2023208
2024168
2025175
202680
Reports that name Neurontin, by month, five years to June 2026
0255020222023202420252026

FDA releases FAERS data every quarter, so the newest months are not complete. They grow in later releases.

Why a count moves

A count moves for many reasons. The guide gives FDA's words about them.

Patients and reporters

Age of the patient in the reports that name Neurontin
AgeReportsShareShare as a bar
Under 2420.2%
2 to 11850.4%
12 to 171020.4%
18 to 442,32010.1%
45 to 645,54124.2%
65 to 742,1299.3%
75 and over1,7497.6%
Age not given10,92247.7%
Sex of the patient in the reports that name Neurontin
SexReportsShareShare as a bar
Female14,05961.4%
Male7,20531.5%
Unknown or not given1,6267.1%
Type of reporter in the reports that name Neurontin
ReporterReportsShareShare as a bar
Physician5,01621.9%
Pharmacist9204%
Other health professional2,96112.9%
Lawyer8363.7%
Consumer or non-health professional10,74546.9%
Not given2,41210.5%

Age and sex are as the report gives them. The reporter is the primary source in the report. 78.2% of the reports give the United States as the country.

Reason for use

Reason for use (indication) that the reports of Neurontin record
Indication as recorded (MedDRA)ReportsShare
Neuralgia1,5796.9%
Pain1,3916.1%
Neuropathy peripheral1,3445.9%
Ill-defined disorder6803%
Fibromyalgia5712.5%
Diabetic neuropathy4662%

The reporter fills in the indication, and the field is often empty. Each share is of all 22,890 reports.

Drugs in the same reports

Other drugs that the reports of Neurontin name, in any role, in order of name
DrugReports that name the two
Aspirin641
Celebrex631
Cymbalta761
Gabapentin1,164
Lipitor793
Lisinopril620
Lyrica2,412
Synthroid462
Xanax608
Zoloft498

The table has the 10 drug names that these reports name most. Two names in one report says only that the report recorded the two. It says nothing about the part of a product in the event.

FDA says:

Additionally, it is important to remember that adverse event reports represent a small percentage of total usage numbers of a product. Common products may have a higher number of adverse events due to the higher total number of people using the product.

Source: openFDA, Drug Adverse Event Overview. The site read the page on .

Importantly, the AEMS data by themselves are not an indicator of the safety profile of the drug or biologic.

Source: FDA, FDA Adverse Event Monitoring System (AEMS) Public Dashboard. Content current as of . The site read the page on .

Pages near this one

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Official pages

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Reported Reactions. Neurontin: adverse event reports that FDA received. https://reportedreactions.com/drug/neurontin/ Source: U.S. Food and Drug Administration, openFDA Drug Adverse Event (FAERS) files, release of . Reports received through .

Where the data come from

The counts come from the openFDA Drug Adverse Event (FAERS) bulk files, release of 29 Oct 2026. The files have the reports that FDA received through 30 Jun 2026. A drug name is the name on the report. The site matches it to a brand name or a generic name of the National Drug Code Directory of 2 Nov 2026. A class is the pharmacologic class (EPC) of the FDA label.

A report is in the count when it names Neurontin as a suspect or interacting product. The 47,992 reports that name it only as a concomitant medicine are not in the count. The site does not publish a report narrative, a lot number, a detail of a patient or the identity of a reporter. The record of FDA is the authority. See how the site counts reports, the data sources and the corrections page.

Questions

Do these reports show that Neurontin was responsible for the reactions?

No. FDA says:

For any given report, there is no certainty that a suspected drug caused the event.

Source: FDA, FDA Adverse Event Monitoring System (AEMS) Public Dashboard. Content current as of . The site read the page on .

A reaction can relate to the condition that the drug treats, to other medicines, or to something else.

Is this the list of reactions on the label of Neurontin?

No. It is a count of what people reported to FDA: 22,890 reports from January 2004 to June 2026. The FDA-approved label of a product lists its adverse reactions. The official pages at the end of this page link to the labels.

Who sent these reports?

Consumer or non-health professional (46.9%), physician (21.9%) and other health professional (12.9%). These are the types of reporter for the reports that name this drug.

If a manufacturer receives an adverse event report, it is normally required to send the report to FDA.

Source: openFDA, Drug Adverse Event Overview. The site read the page on .

How does a person report an adverse event?

FDA runs MedWatch, a program that takes voluntary reports from health professionals, patients and consumers. The guide on how to report has the links.