Reaction profile

The FDA adverse-event record for lockjaw

97 FDA adverse-event reports reference lockjaw (VeDDRA 1587). Plate codes and volume neighbourhood below; species, breeds, and drugs follow.

#1410 of 2,481
by report volume (all reactions)
97
reports citing this reaction
20.6%
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. Lockjaw has 97 reports now versus 96 in that prior snapshot: 1 more (1.0%).

Report change
+1
Death-coded reports
+1
Death-coded share
+0.8 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 Lockjaw changes

FDA AER · VeDDRA plate

Code 1587 VOL-LOW

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

  • VOL-LOW 97 reports
  • DEATH-HOT 20.6%
  • MID-PACK #1410/2481
  • PHOTO-FINISH Digestive tract steno…
  • SPECIES-DOG Dog · 90
  • DRUG-LEAD Afoxolaner · 20
  • DESK-WIDE 20 breeds
  • BOOK-FULL 8/8 fields

Nearest volume peer: Digestive tract stenosis and obstruction 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.

Report-volume neighbourhood around Lockjaw

Highest and lowest poles plus nearest volume peers, not a full 2,500-reaction corpus board reprint.

Vomiting · highest174348Digestive tract steno… · near97Dysuria · near97Feeling anxious · near97Lockjaw · this reaction97Symptom NOS involving… · near97Urinary tract neoplas… · low…10
FDA AER report volume · neighbourhood around Lockjaw

What the FDA AER plate says about Lockjaw

Signature read: death-coded share at 20.6% is the most distinctive outcome stamp on Lockjaw. Report volume sits in the middle third of the reaction corpus. 20 of 97 reports were death-coded (20.6% of named reports, not a population mortality rate). Nearest volume peer: Digestive tract stenosis and obstruction NOS (±0 reports). Lead species Dog (90). Lead co-reported drug Afoxolaner (20).

Read these counts as reporting volume, not risk: per our methodology, Lead co-reported drug Afoxolaner 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 90
Cat 6
Goat 1

Breeds Most Affected

Retriever - Labrador 13
Retriever - Golden 9
Crossbred Canine/dog 7
Domestic Shorthair 4
Terrier - Yorkshire 4
Shepherd Dog - Australian 4
Pug 3
Cattle Dog - Australian (blue heeler, red heeler, Queensland cattledog) 3
Schnauzer - Miniature 3
Maltese 3

Associated Drugs

Afoxolaner 20
Milbemycin Oxime + Spinosad 8
Moxidectin 8
Ivermectin + Pyrantel As Pamoate Salt 8
Pyrantel Pamoate;Sarolaner 7
Sarolaner 6
Fluralaner 13.64% 12-Week Chew 5
Milbemycin Oxime + Praziquantel 4
Spinosad 3
Prednisolone; Trimeprazine Tartrate 3
Fluralaner Chew Tablets 3
Carprofen 3
Bedinvetmab 3
Vaccines (Unknown) 2
Tiletamine Hcl; Zolazapam Hcl 2
Cefpodoxime Proxetil 2
Milbemycin Oxime 2
Isoflupredone Acetate; Neomycin Sulfate; Tetracaine Hydrochloride 2
Melarsomine Dihydrochloride 2
Lotilaner 2

Nationwide reactions with similar profiles

Two openFDA-derived peer sets for Lockjaw, 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 (20.6% 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 Lockjaw (#1410 of 2,481 by report volume); death-coded 20.6%. PlainBreed reaction plate · death-coded share stamp 20.6% · 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 →