Reaction profile

The FDA adverse-event record for elevated liver enzymes

5,736 FDA adverse-event reports reference elevated liver enzymes (VeDDRA 1942). See the species, breeds, and drugs most associated with it below.

5,736
reports citing this reaction
18.9%
death-coded share
Dog
most-affected species
Carprofen
most-associated drug
Verify with FDA CVM →
5,736
Total Reports
1,082
Deaths
18.9%
Death Rate

Species Most Affected

Dog 5,316
Cat 350
Horse 44
Human 7
Cattle 7
Goat 4
Parrot 1
Guinea Pig 1
Other Canids 1
Pig 1

Breeds Most Affected

Retriever - Labrador 915
Crossbred Canine/dog 265
Dog (unknown) 229
Chihuahua 217
Shih Tzu 206
Domestic Shorthair 195
Retriever - Golden 186
Terrier - Yorkshire 134
Maltese 127
Boxer (German Boxer) 122

Associated Drugs

Carprofen 1,332
Milbemycin Oxime + Spinosad 698
Oclacitinib Maleate 515
Maropitant Citrate 435
Trilostane 352
Spinosad 262
Moxidectin 245
Grapiprant 217
Tramadol 214
Afoxolaner 188
Prednisone 185
Famotidine 178
Deracoxib 154
Metronidazole 140
Enrofloxacin 135
Sam-E, Silybin, Vitamin E, Zinc 131
Gabapentin 131
Ivermectin + Pyrantel As Pamoate Salt 128
Meloxicam 127
Milbemycin Oxime + Praziquantel 124

Elevated liver enzymes Reaction Insights

5,736 reports name Elevated liver enzymes; 1,082 recorded a death outcome (18.9% of reported events, not a population-level mortality rate). VeDDRA code: 1942.

By species: Dog (5,316 reports), Cat (350 reports), Horse (44 reports). By breed: Retriever - Labrador (915), Crossbred Canine/dog (265), Dog (unknown) (229).

Most co-reported drugs: Carprofen (1,332 reports), Milbemycin Oxime + Spinosad (698 reports), Oclacitinib Maleate (515 reports), Maropitant Citrate (435 reports).

Read these counts as reporting volume, not risk: per our methodology, co-reporting reflects temporal association captured in voluntary submissions, not proof that a drug caused this reaction. A widely-prescribed drug will rack up more raw co-reports at an identical true rate than a rarely-used one, so compare within similar-exposure products.

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.