Gabapentin Side Effects and Safety: What the FDA Record Shows

Gabapentin Side Effects are documented on the FDA prescribing label, and reported separately by patients and doctors to the FDA’s adverse event system. This page sets out what the official record actually says about Gabapentin: what it is approved to treat, what the label warns about, its recall history, and what the reported side effects are — along with what those figures do and do not mean.

Before you read on. Do not stop taking a prescribed medicine, or change how you take it, because of anything you read here. Talk to the prescriber or pharmacist who knows your medical history first.

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What Gabapentin Is Prescribed For, and Where Gabapentin Side Effects Come From

According to the FDA label, abapentin is indicated for: Management of postherpetic neuralgia in adults Adjunctive therapy in the treatment of partial onset seizures, with and without secondary generalization, in adults and pediatric patients 3 years and older with epilepsy Gabapentin is indicated for: Postherpetic neuralgia in adults ( 1 ) Adjunctive therapy in the treatment of partial onset seizures, with and without secondary generalization, in adults and pediatric patients 3 years and older with epilepsy ( 1 )

Two separate official sources describe gabapentin side effects. The prescribing label records what was observed in clinical trials, where the drug was compared against a control group. The FDA’s adverse event database records what patients and clinicians have reported since approval, which is a much larger but far less controlled picture. Both appear below, and they answer different questions.

Active ingredient Gabapentin
Brand names on this label Gabapentin
How it is given oral
Boxed warning See the label for this product
Recall records 17
Label last updated 2025-12-04

Warnings on the Gabapentin Label

The FDA prescribing label carries the full set of warnings and precautions for Gabapentin. Because a medicine can have several approved labels from different manufacturers and formulations, the safest way to see the warnings that apply to the exact product you have is to read the label for that product.

You can look up any product’s current FDA label on DailyMed, the National Library of Medicine’s official label database, using the name on your bottle or box.

Warnings Beyond the Common Gabapentin Side Effects

The label’s warnings and precautions section describes risks the FDA requires prescribers to weigh. For Gabapentin it covers: rug Reaction with Eosinophilia and Systemic Symptoms (Multiorgan hypersensitivity): Discontinue if alternative etiology is not established ( 5.1 ) Anaphylaxis and Angioedema: Discontinue and evaluate patient immediately ( 5.2 ) Driving Impairment; Somnolence/Sedation and Dizziness: Warn patients not to drive until they have gained sufficient experience to assess whether their ability to drive or operate heavy machinery will be impaired ( 5.3 , 5.4 ) Increased seizure frequency may occur in patients with seizure disorders if gabapentin is abruptly discontinued ( 5.5 ) Suicidal Behavior and Ideation: Monitor for suicidal thoughts/behavior ( 5.6 ) Respiratory Depression: May occur with gabapentin when used with concomitant central nervous system (CNS) depressants, including opioids, or in the setting of underlying respiratory impairment. […]

These are the risks the FDA has judged significant enough to state formally, and they sit apart from the routine gabapentin side effects most people ask about. They apply to different patients to very different degrees, which is why the same medicine can be routine for one person and unsuitable for another.

Gabapentin Side Effects Listed on the FDA Label

The label’s adverse reactions section records what was observed in clinical trials: he following serious adverse reactions are discussed in greater detail in other sections: Drug Reaction with Eosinophilia and Systemic Symptoms (DRESS)/Multiorgan Hypersensitivity [see Warnings and Precautions (5.1) ] Anaphylaxis and Angioedema [see Warnings and Precautions (5.2) ] Somnolence/Sedation and Dizziness [see Warnings and Precautions (5.4) ] Withdrawal Precipitated Seizure, Status Epilepticus [see Warnings and Precautions (5.5) ] Suicidal Behavior and Ideation [see Warnings and Precautions (5.6) ] Respiratory Depression [see Warnings and Precautions (5.7) ] Neuropsychiatric Adverse Reactions (Pediatric Patients 3 to 12 Years of Age) [see Warnings and Precautions (5.8) ] Sudden and Unexplained Death in Patients with Epilepsy [see Warnings and Precautions (5.10) ] Most common adverse reactions (incidence ≥ 8% and at least twice that for placebo) were: Postherpetic neuralgia: Diz […]

Trial data is the most reliable source for how common gabapentin side effects are, because the people taking the drug were compared against people who were not. A symptom that appeared just as often in the control group is not caused by the medicine.

Reported Gabapentin Side Effects in the FDA Database

Reported gabapentin side effects — and what these numbers do not mean

The FDA’s adverse event database holds 359,780 reports mentioning Gabapentin, of which 227,664 were classified as serious.

Read those numbers carefully. An adverse event report means somebody told the FDA that something happened to a person taking this medicine. It is not a finding that the medicine caused it. Reports are submitted voluntarily by patients, families, doctors and manufacturers; nobody verifies them; and the same event can be reported more than once.

Report volume tracks how many people take a drug, how new it is, and how much attention it is getting. A widely prescribed medicine will always show more reports than a rarely used one, and reports rise sharply when a drug is in the news or in litigation. A large number here does not mean a drug is dangerous, and a small number does not mean it is safe.

Most frequently reported Reports
Fatigue 24,881
Nausea 22,428
Pain 21,052
Diarrhoea 17,860
Headache 17,665
Dizziness 16,329
Fall 15,428
Dyspnoea 14,019

Source: FDA Adverse Event Reporting System (FAERS), retrieved July 2026. Non-clinical reporting categories such as “off label use” have been excluded from the list above because they describe how a drug was used, not something that happened to a patient.

Who the Label Says Should Take Extra Care

Contraindications. The label states that Gabapentin should not be used in certain situations: abapentin is contraindicated in patients who have demonstrated hypersensitivity to the drug or its ingredients. Known hypersensitivity to gabapentin or its ingredients ( 4 )

Interactions with other medicines. oncentrations increased by morphine; may need dose adjustment ( 5.4 , 7.1 ) 7.1 Opioids Respiratory depression and sedation, sometimes resulting in death, have been reported following coadministration of gabapentin with opioids (e.g., morphine, hydrocodone, oxycodone, buprenorphine) [see Warnings and Precautions (5.7) ]. Hydrocodone Coadministration of gabapentin with hydrocodone decreases hydrocodone exposure [see Clinical Pharmacology (12.3) ]. […]

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Older adults. 8.5 Geriatric Use The total number of patients treated with gabapentin in controlled clinical trials in patients with postherpetic neuralgia was 336, of which 102 (30%) were 65 to 74 years of age, and 168 (50%) were 75 years of age and older. There was a larger treatment effect in patients 75 years of age and older compared to younger patients who received the same dosage. […]

Your pharmacist can check your full medicine list against this in a couple of minutes, including anything bought over the counter, and that check is free.

Gabapentin Recall History

The FDA enforcement database records 17 recall entries involving Gabapentin products (11 Class II, 6 Class III). A recall almost always concerns specific manufactured batches rather than the medicine itself, and different manufacturers of the same generic drug have separate recall records.

The FDA classifies recalls by how serious the potential consequence is. Class I means a reasonable probability of serious harm or death; Class II means temporary or reversible harm is possible; Class III means the product breaks a regulation but is unlikely to cause harm.

Date Class Recalling firm Reason
2025-10-29 Class II The Harvard Drug Group LLC Failed Impurities/Degradation Specifications: an out of specification result obtained during routine stability testing for Highest Unknown Impurity .
2025-10-29 Class II The Harvard Drug Group LLC Failed Impurities/Degradation Specifications: an out of specification result obtained during routine stability testing for Highest Unknown Impurity .
2025-07-09 Class II The Harvard Drug Group LLC Defective container; blister packaging inadequately sealed.
2025-07-09 Class II The Harvard Drug Group LLC Defective container; blister packaging inadequately sealed.
2025-04-16 Class II Glenmark Pharmaceuticals Inc., USA CGMP Deviations

If a batch you have was recalled, the pharmacy that dispensed it is the fastest way to find out and to get a replacement. Do not simply stop taking a prescribed medicine because a recall notice exists — the recall may not affect your batch, and stopping can carry its own risk.

Is Gabapentin the Subject of Litigation?

We are not tracking consolidated federal litigation over Gabapentin. It is a widely prescribed medicine, and the information on this page is drawn from the FDA label and public safety data rather than from any legal claim.

If You Are Worried About Gabapentin Side Effects

Concern about gabapentin side effects is a good reason to have a conversation, and not a reason to act alone. Do not stop taking a prescribed medicine, or change how you take it, because of anything you read here. Talk to the prescriber or pharmacist who knows your medical history first. Stopping some medicines abruptly carries risks of its own, and your prescriber can tell you whether that applies to yours.

Write down what you have noticed and when it started before the appointment. Not everything that happens while taking a medicine is one of its gabapentin side effects, and a specific account — what changed, when, and how often — is what lets a clinician tell the difference.

You can also report a side effect directly to the FDA through MedWatch. Reports from patients are part of how safety signals are detected, and filing one takes a few minutes.

Frequently Asked Questions

What are the most commonly reported gabapentin side effects?

In FDA reports, the most frequently mentioned are fatigue, nausea, pain. The label’s own adverse reactions section, drawn from clinical trials, is the better guide to how common a side effect actually is, because reports to the FDA are not collected in a way that supports rates.

Has Gabapentin been recalled?

There are 17 recall records for Gabapentin products, the most recent dated 2025-10-29. Recalls generally affect specific manufactured batches rather than the medicine as a whole. Your pharmacy can tell you whether a batch you have was affected.

Does Gabapentin have a boxed warning?

A medicine can have several approved labels from different manufacturers, so the reliable answer for the exact product you have is on that product’s label. You can look it up on DailyMed using the name on your packaging.

Do the FDA report numbers tell me how common these gabapentin side effects are?

No. Reports are unverified, anyone can file one, and the total mostly reflects how many people take the medicine and how much attention it is getting. A high count is not evidence of danger, and a low one is not evidence of safety. Clinical trial data on the label is the source that supports rates.

Where can I check gabapentin side effects for the exact product I have?

DailyMed holds the current FDA label for every marketed product, searchable by the name on your packaging. Different manufacturers and formulations of the same medicine can have slightly different labels, so checking the one you actually have is worth the two minutes.

Official Sources

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