Reaction profile

The FDA adverse-event record for dental calculus

411 FDA adverse-event reports reference dental calculus (VeDDRA 2226). See the species, breeds, and drugs most associated with it below.

411
reports citing this reaction
14.6%
death-coded share
Dog
most-affected species
Milbemycin Oxime + Spinosad
most-associated drug
Verify with FDA CVM →
411
Total Reports
60
Deaths
14.6%
Death Rate

Species Most Affected

Dog 373
Cat 38

Breeds Most Affected

Retriever - Labrador 46
Crossbred Canine/dog 24
Domestic Shorthair 23
Shih Tzu 20
Chihuahua 18
Maltese 17
Retriever - Golden 15
Pit Bull 14
Terrier - Jack Russell 12
Shepherd Dog - German 11

Associated Drugs

Milbemycin Oxime + Spinosad 197
Milbemycin Oxime + Praziquantel 49
Trilostane 47
Rabies Vaccine 34
Spinosad 24
Bordetella Vaccine 23
Maropitant Citrate 22
Afoxolaner 21
Fluralaner Chew Tablets 17
Gabapentin 17
Carprofen 15
Ivermectin 15
Imidacloprid + Moxidectin 14
Prednisone 14
Milbemycin Oxime 13
Oclacitinib Maleate 13
Lotilaner 13
Tramadol 12
Fluralaner 12
Cyclosporine 10

Dental calculus Reaction Insights

411 reports name Dental calculus; 60 recorded a death outcome (14.6% of reported events, not a population-level mortality rate). VeDDRA code: 2226.

By species: Dog (373 reports), Cat (38 reports). By breed: Retriever - Labrador (46), Crossbred Canine/dog (24), Domestic Shorthair (23).

Most co-reported drugs: Milbemycin Oxime + Spinosad (197 reports), Milbemycin Oxime + Praziquantel (49 reports), Trilostane (47 reports), Rabies Vaccine (34 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.