Drug profile

The FDA adverse-event record for Aspirin

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

212
adverse-event reports
23.6%
death-coded share
Dog
most-reported species
38
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.
212
Total Reports
50
Deaths Reported
23.6%
Death Rate

Active Ingredients

Aspirin

Administration Routes

OralUnknown

Species Affected

Dog 154
Human 41
Cat 14
Pig 3

Most Affected Breeds

Unknown 41
Retriever - Labrador 28
Boxer (German Boxer) 8
Retriever - Golden 6
Shepherd Dog - German 5
Terrier - Jack Russell 5
Shepherd (unspecified) 5
Pit Bull 5
Beagle 4
Retriever (unspecified) 4

Most Reported Reactions

Vomiting 38
Death by euthanasia 35
Diarrhoea 29
Lethargy (see also Central nervous system depression in 'Neurological') 26
Accidental exposure 25
Other abnormal test result NOS 24
Anorexia 23
Emesis 19
Weight loss 17
Decreased appetite 15
Anaemia NOS 15
Seizure NOS 14

Outcome Breakdown

Recovered/Normal
62 (29.2%)
Outcome Unknown
48 (22.6%)
Euthanized
36 (17.0%)
Ongoing
34 (16.0%)
Recovered with Sequela
17 (8.0%)
Died
15 (7.1%)

Aspirin Adverse Event Insights

212 reports name Aspirin; 50 recorded a death outcome (23.6% of reported events, not a population-level mortality rate). Active ingredient: Aspirin. Administration routes: Oral, Unknown.

By species: Dog (154 reports), Human (41 reports), Cat (14 reports). By breed: Unknown (41), Retriever - Labrador (28), Boxer (German Boxer) (8).

Leading clinical signs: Vomiting (38), Death by euthanasia (35), Diarrhoea (29), Lethargy (see also Central nervous system depression in 'Neurological') (26). Outcome, 212 coded reports: Recovered/Normal leads at 29.2%.

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.