Reaction profile

The FDA adverse-event record for dental calculus

426 FDA reports name dental calculus, a high-volume reaction in the CVM extract (VeDDRA 2226). Plate stamps and neighbourhood peers follow.

#698 of 2,481
by report volume (all reactions)
426
reports citing this reaction
14.8%
death-coded share
Dog
most-affected species

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. Dental calculus has 426 reports now versus 417 in that prior snapshot: 9 more (2.2%).

Report change
+9
Death-coded reports
+2
Death-coded share
+0.2 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 Dental calculus changes

FDA AER · VeDDRA plate

Code 2226 VOL-LOW

VOL-LOW · DEATH-ELEV · MID-PACK · PHOTO-FINISH · SPECIES-DOG · DRUG-LEAD · DESK-WIDE · BOOK-FULL

  • VOL-LOW 426 reports
  • DEATH-ELEV 14.8%
  • MID-PACK #698/2481
  • PHOTO-FINISH Swollen face (see als…
  • SPECIES-DOG Dog · 386
  • DRUG-LEAD Milbemycin Oxime… · 197
  • DESK-WIDE 20 breeds
  • BOOK-FULL 8/8 fields

Nearest volume peer: Swollen face (see also 'Skin') (±0 reports)

Upper-third report volume drives the scale stamps on this plate; death-coded share and co-report peers follow. Not a clinical diagnosis.

High-volume neighbourhood around Dental calculus

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

Vomiting · highest174348Dental calculus · this react…426Swollen face (see als… · near426Lip oedema (see also… · near425Shallow breathing · near425Ulceration NOS · near425Urinary tract neoplas… · low…10
FDA AER report volume · neighbourhood around Dental calculus

What the FDA AER plate says about Dental calculus

Signature read: 63 death-coded reports is a heavy tail count for Dental calculus in the CVM extract. Report volume is upper-third scale: 426 named reports in the openFDA extract. 63 of 426 reports were death-coded (14.8% of named reports, not a population mortality rate). Nearest volume peer: Swollen face (see also 'Skin') (±0 reports). Lead species Dog (386). Lead co-reported drug Milbemycin Oxime + Spinosad (197).

Read these counts as reporting volume, not risk: per our methodology, Lead co-reported drug Milbemycin Oxime + Spinosad 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 386
Cat 40

Breeds Most Affected

Retriever - Labrador 46
Crossbred Canine/dog 25
Domestic Shorthair 24
Chihuahua 23
Shih Tzu 20
Maltese 18
Retriever - Golden 15
Pit Bull 14
Terrier - Jack Russell 12
Shepherd Dog - German 11

Associated Drugs

Milbemycin Oxime + Spinosad 197
Milbemycin Oxime + Praziquantel 54
Trilostane 49
Rabies Vaccine 34
Spinosad 24
Maropitant Citrate 24
Bordetella Vaccine 23
Afoxolaner 23
Lotilaner 20
Fluralaner Chew Tablets 17
Gabapentin 17
Carprofen 15
Ivermectin 15
Imidacloprid + Moxidectin 14
Prednisone 14
Milbemycin Oxime 13
Oclacitinib Maleate 13
Tramadol 12
Fluralaner 12
Diphenhydramine 11

Nationwide reactions with similar profiles

Two openFDA-derived peer sets for Dental calculus, both floored at ≥50 reports so the neighborhoods stay in the advertised mass (the volume chart above is the unfloored photo-finish strip).

Similar death-coded share

Nearest other reactions by death-coded share (14.8% here), distinct from the volume row.

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 Dental calculus (#698 of 2,481 by report volume); death-coded 14.8%. PlainBreed reaction plate · death-coded report count stamp 63 · 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 →