Drug profile

The FDA adverse-event record for Gabapentin

9,180 adverse-event reports submitted to the FDA Center for Veterinary Medicine reference Gabapentin. See the species affected, top reactions, and outcomes below.

9,180
adverse-event reports
16.1%
death-coded share
Dog
most-reported species
1,444
Vomiting - top reaction
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Important: Adverse event reports do not establish that a drug caused or contributed to the event. Consult your veterinarian before making treatment decisions.
9,180
Total Reports
1,478
Deaths Reported
16.1%
Death Rate

Active Ingredients

Gabapentin

Administration Routes

UnknownOralSubcutaneousParenteralTopicalOtherTransdermalOphthalmicIntradermalIntralesional

Species Affected

Dog 7,647
Cat 1,502
Human 17
Unknown 4
Horse 3
Pig 2
Goat 2
Ferret 2
Other 1

Most Affected Breeds

Retriever - Labrador 1,316
Domestic Shorthair 973
Shepherd Dog - German 409
Crossbred Canine/dog 398
Retriever - Golden 343
Terrier - Bull - American Pit 278
Chihuahua 230
Boxer (German Boxer) 208
Dog (unknown) 186
Beagle 185

Most Reported Reactions

Vomiting 1,444
Diarrhoea 1,034
Death by euthanasia 987
Lethargy (see also Central nervous system depression in Neurological) 880
Not eating 798
Lack of efficacy - NOS 767
Lethargy (see also Central nervous system depression in 'Neurological') 636
Decreased appetite 603
Elevated alanine aminotransferase (ALT) 591
Ataxia 560
Anorexia 542
Seizure NOS 489

Outcome Breakdown

Ongoing
3,972 (43.3%)
Outcome Unknown
2,075 (22.6%)
Recovered/Normal
1,619 (17.6%)
Euthanized
985 (10.7%)
Died
496 (5.4%)
Recovered with Sequela
34 (0.4%)

Gabapentin Adverse Event Insights

9,180 reports name Gabapentin; 1,478 recorded a death outcome (16.1% of reported events, not a population-level mortality rate). Active ingredient: Gabapentin. Administration routes: Unknown, Oral, Subcutaneous, Parenteral.

By species: Dog (7,647 reports), Cat (1,502 reports), Human (17 reports). By breed: Retriever - Labrador (1,316), Domestic Shorthair (973), Shepherd Dog - German (409).

Leading clinical signs: Vomiting (1,444), Diarrhoea (1,034), Death by euthanasia (987), Lethargy (see also Central nervous system depression in Neurological) (880). Outcome, 9,181 coded reports: Ongoing leads at 43.3%.

Read these counts as reporting volume, not risk: per our methodology, a widely-prescribed drug will rack up more raw FDA reports in a given year than a rarely-used one at an identical true rate, so we recommend comparing within similar-exposure products rather than across the full 2025 catalog.

Source: FDA Center for Veterinary Medicine openFDA Animal & Veterinary Adverse Events (CVM AER) · 2025

Every figure on PlainBreed is rendered directly from FDA openFDA adverse event data, no number is typed in by an editor. This page draws directly on FDA openFDA data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.