Reaction profile

The FDA adverse-event record for tonsillitis

22 FDA reports name tonsillitis, a lower-volume reaction in the CVM extract (VeDDRA 2452). Plate stamps and neighbourhood peers follow.

#2137 of 2,481
by report volume (all reactions)
22
reports citing this reaction
13.6%
death-coded share
Dog
most-affected species
Verify with FDA CVM →

Release-over-release change

What changed in the latest FDA data snapshot

PlainBreed reconstructed the prior snapshot from dated openFDA partitions through 2025 Q4, then compared it with the 2026-07-27 openFDA export. Tonsillitis has 22 reports now versus 22 in that prior snapshot: 0 the same number of (0.0%).

Report change
+0
Death-coded reports
+0
Death-coded share
−0.0 pts

This compares reported-event counts in two source snapshots. It does not establish a change in real-world risk, product safety, or disease incidence.

Subscribe to Tonsillitis changes

FDA AER · VeDDRA plate

Code 2452 VOL-TRACE

VOL-TRACE · DEATH-ELEV · LOWER-Q · PHOTO-FINISH · SPECIES-DOG · DRUG-LEAD · DESK-WIDE · BOOK-FULL

  • VOL-TRACE 22 reports
  • DEATH-ELEV 13.6%
  • LOWER-Q #2137/2481
  • PHOTO-FINISH Adenocarcinoma NOS
  • SPECIES-DOG Dog · 20
  • DRUG-LEAD Fluralaner Chew T… · 4
  • DESK-WIDE 18 breeds
  • BOOK-FULL 8/8 fields

Nearest volume peer: Adenocarcinoma NOS (±0 reports)

Instrument codes from this reaction’s FDA CVM adverse-event extract: volume band, death-coded share, corpus rank, photo-finish peer, lead species, lead drug, breed desk, and book completeness. Not a clinical diagnosis.

Lower-volume neighbourhood around Tonsillitis

Lower-third volume poles plus nearest peers, not a full reaction corpus board reprint.

Vomiting · highest174348Adenocarcinoma NOS · near22Bolus, Abnormal · near22Bone marrow aplasia · near22CEREBROSPINAL FLUID A… · near22Tonsillitis · this reaction22Urinary tract neoplas… · low…10
FDA AER report volume · neighbourhood around Tonsillitis

What the FDA AER plate says about Tonsillitis

Signature read: 22 reports place Tonsillitis in the lower third of FDA AER volume (#2137 of 2,481). Report volume is lower-third scale: 22 named reports in the openFDA extract. 3 of 22 reports were death-coded (13.6% of named reports, not a population mortality rate). Nearest volume peer: Adenocarcinoma NOS (±0 reports). Lead species Dog (20). Lead co-reported drug Fluralaner Chew Tablets (4).

Read these counts as reporting volume, not risk: per our methodology, Lead co-reported drug Fluralaner Chew Tablets appears in filings alongside this reaction; that is association, not causation. Browse the full reactions index or the about page for how PlainBreed frames FDA CVM extracts.

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

What to do with this reaction

A report does not prove a drug caused the reaction; consult a veterinarian before acting on this data.

Source: FDA Center for Veterinary Medicine openFDA Animal & Veterinary Adverse Events (CVM AER) · 2025

openFDA Animal & Veterinary Adverse Events (FDA CVM) for Tonsillitis (#2137 of 2,481 by report volume); death-coded 13.6%. PlainBreed reaction plate · report volume stamp 22 · vintage 2025.

Informational only. FDA adverse-event reports are voluntary and do not prove causation; consult a veterinarian before acting on them. Verify with FDA CVM →