Reaction profile

The FDA adverse-event record for dental discolouration

11 FDA adverse-event reports reference dental discolouration (VeDDRA 283). See the species, breeds, and drugs most associated with it below.

11
reports citing this reaction
18.2%
death-coded share
Dog
most-affected species
Milbemycin Oxime + Spinosad
most-associated drug
Verify with FDA CVM →
11
Total Reports
2
Deaths
18.2%
Death Rate

Species Most Affected

Dog 10
Cat 1

Breeds Most Affected

Retriever - Labrador 1
Corgi (unspecified) 1
Domestic Shorthair 1
Terrier - Bull - Staffordshire 1
Dachshund (unspecified) 1
Crossbred Canine/dog 1
Shih Tzu 1
Maltese 1
Dachshund - Standard Smooth-haired 1
Pit Bull 1

Associated Drugs

Milbemycin Oxime + Spinosad 3
Trilostane 3
Carprofen 2
Clindamycin 1
Spinosad 1
Rabies Vaccine 1
Distemper Vaccine 1
Parvo Vaccine 1
Bordetella Vaccine 1
Cefovecin 1
Anesthetic 1
Hydromorphone Hcl 1
Tramadol Hcl 1
Recombinant Human Insulin 1
Famotidine 1
Maropitant 1
Thyroid Hormone 1
Sarolaner 1
Heartgard 1
Lotilaner 1

Dental discolouration Reaction Insights

11 reports name Dental discolouration; 2 recorded a death outcome (18.2% of reported events, not a population-level mortality rate). VeDDRA code: 283.

By species: Dog (10 reports), Cat (1 reports). By breed: Retriever - Labrador (1), Corgi (unspecified) (1), Domestic Shorthair (1).

Most co-reported drugs: Milbemycin Oxime + Spinosad (3 reports), Trilostane (3 reports), Carprofen (2 reports), Clindamycin (1 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.