Drug profile

The FDA adverse-event record for Grapiprant

7,974 adverse-event reports submitted to the FDA Center for Veterinary Medicine reference Grapiprant. See the species affected, top reactions, and outcomes below.

7,974
adverse-event reports
8.7%
death-coded share
Dog
most-reported species
1,397
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.
7,974
Total Reports
697
Deaths Reported
8.7%
Death Rate

Active Ingredients

Grapiprant

Administration Routes

OralUnknownOphthalmicTopicalSubcutaneousRectalIntramuscularCutaneousOtherParenteral

Species Affected

Dog 7,308
Unknown 638
Cat 15
Human 13

Most Affected Breeds

Retriever - Labrador 1,239
Dog (unknown) 747
Unknown 665
Retriever - Golden 373
Shepherd Dog - German 356
Crossbred Canine/dog 310
Pit Bull 184
Shepherd Dog - Australian 180
Collie - Border 169
Chihuahua 160

Most Reported Reactions

Vomiting 1,397
Diarrhoea 1,225
Lack of efficacy - NOS 971
Lethargy (see also Central nervous system depression in 'Neurological') 678
Elevated alanine aminotransferase (ALT) 499
Not eating 450
Death by euthanasia 447
Decreased appetite 418
Bloody diarrhoea 384
Tablets, Abnormal 374
Weight loss 342
Elevated blood urea nitrogen (BUN) 328

Outcome Breakdown

Outcome Unknown
2,517 (34.3%)
Ongoing
2,457 (33.5%)
Recovered/Normal
1,630 (22.2%)
Euthanized
447 (6.1%)
Died
252 (3.4%)
Recovered with Sequela
40 (0.5%)

Grapiprant Adverse Event Insights

7,974 reports name Grapiprant; 697 recorded a death outcome (8.7% of reported events, not a population-level mortality rate). Active ingredient: Grapiprant. Administration routes: Oral, Unknown, Ophthalmic, Topical.

By species: Dog (7,308 reports), Unknown (638 reports), Cat (15 reports). By breed: Retriever - Labrador (1,239), Dog (unknown) (747), Unknown (665).

Leading clinical signs: Vomiting (1,397), Diarrhoea (1,225), Lack of efficacy - NOS (971), Lethargy (see also Central nervous system depression in 'Neurological') (678). Outcome, 7,343 coded reports: Outcome Unknown leads at 34.3%.

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.