Drug profile

The FDA adverse-event record for Tramadol

3,623 adverse-event reports submitted to the FDA Center for Veterinary Medicine reference Tramadol. See the species affected, top reactions, and outcomes below.

3,623
adverse-event reports
17.2%
death-coded share
Dog
most-reported species
783
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.
3,623
Total Reports
622
Deaths Reported
17.2%
Death Rate

Active Ingredients

Tramadol

Administration Routes

OralUnknownTransdermalOtherSubcutaneousOphthalmicTopicalOropharyngealParenteralIntravenous

Species Affected

Dog 3,581
Cat 27
Human 8
Unknown 2
Parrot 2
Other Canids 1
Other 1
Rabbit 1

Most Affected Breeds

Retriever - Labrador 717
Shepherd Dog - German 185
Crossbred Canine/dog 154
Retriever - Golden 153
Boxer (German Boxer) 112
Dog (unknown) 84
Chihuahua 80
Rottweiler 79
Shepherd Dog - Australian 73
Beagle 73

Most Reported Reactions

Vomiting 783
Lethargy (see also Central nervous system depression in 'Neurological') 682
Other abnormal test result NOS 507
Anorexia 454
Diarrhoea 444
Death by euthanasia 391
Elevated alanine aminotransferase (ALT) 335
Emesis 327
Lack of efficacy - NOS 298
Elevated serum alkaline phosphatase (SAP) 297
Weight loss 258
Decreased appetite 248

Outcome Breakdown

Ongoing
1,228 (34.0%)
Recovered/Normal
946 (26.2%)
Outcome Unknown
749 (20.7%)
Euthanized
396 (11.0%)
Died
226 (6.3%)
Recovered with Sequela
70 (1.9%)

Tramadol Adverse Event Insights

3,623 reports name Tramadol; 622 recorded a death outcome (17.2% of reported events, not a population-level mortality rate). Active ingredient: Tramadol. Administration routes: Oral, Unknown, Transdermal, Other.

By species: Dog (3,581 reports), Cat (27 reports), Human (8 reports). By breed: Retriever - Labrador (717), Shepherd Dog - German (185), Crossbred Canine/dog (154).

Leading clinical signs: Vomiting (783), Lethargy (see also Central nervous system depression in 'Neurological') (682), Other abnormal test result NOS (507), Anorexia (454). Outcome, 3,615 coded reports: Ongoing leads at 34.0%.

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.