Reaction profile

The FDA adverse-event record for lockjaw

96 FDA adverse-event reports reference lockjaw (VeDDRA 1587). See the species, breeds, and drugs most associated with it below.

96
reports citing this reaction
19.8%
death-coded share
Dog
most-affected species
Afoxolaner
most-associated drug
Verify with FDA CVM →
96
Total Reports
19
Deaths
19.8%
Death Rate

Species Most Affected

Dog 89
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
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
Bordetella Vaccine 2
Trilostane 2

Lockjaw Reaction Insights

96 reports name Lockjaw; 19 recorded a death outcome (19.8% of reported events, not a population-level mortality rate). VeDDRA code: 1587.

By species: Dog (89 reports), Cat (6 reports), Goat (1 reports). By breed: Retriever - Labrador (13), Retriever - Golden (9), Crossbred Canine/dog (7).

Most co-reported drugs: Afoxolaner (20 reports), Milbemycin Oxime + Spinosad (8 reports), Moxidectin (8 reports), Ivermectin + Pyrantel As Pamoate Salt (8 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.