Reaction profile

The FDA adverse-event record for collapse (see also 'cardio-vascular' and 'systemic disorders')

2,075 FDA adverse-event reports reference collapse (see also 'cardio-vascular' and 'systemic disorders') (VeDDRA 668). See the species, breeds, and drugs most associated with it below.

2,075
reports citing this reaction
35.8%
death-coded share
Dog
most-affected species
Milbemycin Oxime + Spinosad
most-associated drug
Verify with FDA CVM →
2,075
Total Reports
743
Deaths
35.8%
Death Rate

Species Most Affected

Dog 1,655
Cat 174
Cattle 145
Horse 85
Pig 6
Goat 2
Sheep 2
Other 1
Rabbit 1
Chicken 1

Breeds Most Affected

Crossbred Canine/dog 179
Retriever - Labrador 157
Boxer (German Boxer) 83
Shepherd Dog - German 70
Domestic (unspecified) 66
Domestic Shorthair 65
Retriever - Golden 54
Chihuahua 54
Shih Tzu 52
Beagle 42

Associated Drugs

Milbemycin Oxime + Spinosad 213
Moxidectin 158
Spinosad 108
Melarsomine Dihydrochloride 96
Carprofen 94
Afoxolaner 85
Fluralaner Chew Tablets 76
Ivermectin + Pyrantel As Pamoate Salt 74
Melarsomine Dihydrochloride Injection 69
Ceftiofur Crystalline Free Acid 41
Maropitant Citrate 41
Trilostane 40
Firocoxib 40
Selamectin 38
Milbemycin Oxime + Praziquantel 38
Deracoxib 36
Meloxicam 36
Cefovecin Sodium 35
Oclacitinib Maleate 34
Ivermectin 31

Collapse (see also 'Cardio-vascular' and 'Systemic disorders') Reaction Insights

2,075 reports name Collapse (see also 'Cardio-vascular' and 'Systemic disorders'); 743 recorded a death outcome (35.8% of reported events, not a population-level mortality rate). VeDDRA code: 668.

By species: Dog (1,655 reports), Cat (174 reports), Cattle (145 reports). By breed: Crossbred Canine/dog (179), Retriever - Labrador (157), Boxer (German Boxer) (83).

Most co-reported drugs: Milbemycin Oxime + Spinosad (213 reports), Moxidectin (158 reports), Spinosad (108 reports), Melarsomine Dihydrochloride (96 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.