Reaction profile

The FDA adverse-event record for discoloured urine

1,018 FDA adverse-event reports reference discoloured urine (VeDDRA 1964). See the species, breeds, and drugs most associated with it below.

1,018
reports citing this reaction
24.0%
death-coded share
Dog
most-affected species
Carprofen
most-associated drug
Verify with FDA CVM →
1,018
Total Reports
244
Deaths
24.0%
Death Rate

Species Most Affected

Dog 895
Cat 79
Horse 31
Cattle 4
Goat 4
Human 3
Pig 1
Rabbit 1

Breeds Most Affected

Retriever - Labrador 152
Crossbred Canine/dog 63
Domestic Shorthair 47
Chihuahua 42
Shepherd Dog - German 40
Dog (unknown) 32
Shih Tzu 31
Terrier - Yorkshire 28
Retriever - Golden 26
Maltese 22

Associated Drugs

Carprofen 251
Milbemycin Oxime + Spinosad 68
Maropitant Citrate 67
Afoxolaner 45
Ivermectin + Pyrantel As Pamoate Salt 44
Moxidectin 41
Bedinvetmab 38
Enrofloxacin 35
Oclacitinib Maleate 34
Pyrantel Pamoate;Sarolaner 33
Meloxicam 32
Fluralaner Chew Tablets 31
Spinosad 29
Famotidine 29
Prednisone 26
Deracoxib 25
Tramadol 25
Cefovecin 25
Gabapentin 25
Metronidazole 23

Discoloured urine Reaction Insights

1,018 reports name Discoloured urine; 244 recorded a death outcome (24.0% of reported events, not a population-level mortality rate). VeDDRA code: 1964.

By species: Dog (895 reports), Cat (79 reports), Horse (31 reports). By breed: Retriever - Labrador (152), Crossbred Canine/dog (63), Domestic Shorthair (47).

Most co-reported drugs: Carprofen (251 reports), Milbemycin Oxime + Spinosad (68 reports), Maropitant Citrate (67 reports), Afoxolaner (45 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.