Reaction profile

The FDA adverse-event record for tonsillitis

22 FDA adverse-event reports reference tonsillitis (VeDDRA 2452). See the species, breeds, and drugs most associated with it below.

22
reports citing this reaction
13.6%
death-coded share
Dog
most-affected species
Fluralaner Chew Tablets
most-associated drug
Verify with FDA CVM →
22
Total Reports
3
Deaths
13.6%
Death Rate

Species Most Affected

Dog 20
Human 1
Cat 1

Breeds Most Affected

Terrier - Yorkshire 3
Crossbred Canine/dog 3
Spaniel - Cocker American 1
Chihuahua 1
Ridgeback - Rhodesian 1
Unknown 1
Shepherd Dog - Belgian Tervueren 1
Retriever - Golden 1
Poodle - Miniature 1
Spaniel - King Charles Cavalier 1

Associated Drugs

Fluralaner Chew Tablets 4
Spinosad 2
Carprofen 2
Maropitant Citrate 2
Oclacitinib Maleate 2
Trilostane 2
Afoxolaner 2
Ivermectin 136Mcg, Pyrantel Pamoate 114Mg, Praziquantel 114Mg 1
Amoxicillin (As Trihydrate); Clavulanate Potassium ( K-Clavulanate) 1
Sucralfate 1
Doxycycline 1
Tramadol 1
Methocarbamol 1
Metronidazole 1
Enrofloxacin 1
Buprenorphine 1
Distemper Vaccine 1
Parvo Vaccine 1
Rabies Vaccine 1
Ivermectin 10 Mg/Ml Solution For Injection 1

Tonsillitis Reaction Insights

22 reports name Tonsillitis; 3 recorded a death outcome (13.6% of reported events, not a population-level mortality rate). VeDDRA code: 2452.

By species: Dog (20 reports), Human (1 reports), Cat (1 reports). By breed: Terrier - Yorkshire (3), Crossbred Canine/dog (3), Spaniel - Cocker American (1).

Most co-reported drugs: Fluralaner Chew Tablets (4 reports), Spinosad (2 reports), Carprofen (2 reports), Maropitant Citrate (2 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.