Reaction profile

The FDA adverse-event record for overdose

13,857 FDA adverse-event reports reference overdose (VeDDRA 3036). See the species, breeds, and drugs most associated with it below.

13,857
reports citing this reaction
4.1%
death-coded share
Dog
most-affected species
Milbemycin Oxime + Spinosad
most-associated drug
Verify with FDA CVM →
13,857
Total Reports
574
Deaths
4.1%
Death Rate

Species Most Affected

Dog 12,193
Cat 1,231
Horse 179
Cattle 140
Unknown 53
Sheep 13
Goat 12
Pig 10
Chicken 10
Turkey 2

Breeds Most Affected

Retriever - Labrador 1,172
Crossbred Canine/dog 959
Chihuahua 813
Domestic Shorthair 774
Terrier - Yorkshire 596
Dog (unknown) 430
Retriever - Golden 422
Shepherd Dog - German 405
Shih Tzu 404
Beagle 353

Associated Drugs

Milbemycin Oxime + Spinosad 2,768
Ivermectin + Pyrantel As Pamoate Salt 1,319
Spinosad 935
Oclacitinib Maleate 773
Afoxolaner 484
Nitenpyram 434
Fluralaner 13.64% 12-Week Chew 431
Carprofen 430
Imidacloprid + Moxidectin 390
Moxidectin 376
Fluralaner Chew Tablets 334
Sarolaner 325
Pyrantel Pamoate;Sarolaner 317
Milbemycin Oxime + Praziquantel 313
Febantel + Praziquantel + Pyrantel Pamoate 256
Selamectin 249
Bedinvetmab 230
Cephalexin 220
Phenylpropanolamine Hcl 216
Maropitant Citrate 212

Overdose Reaction Insights

13,857 reports name Overdose; 574 recorded a death outcome (4.1% of reported events, not a population-level mortality rate). VeDDRA code: 3036.

By species: Dog (12,193 reports), Cat (1,231 reports), Horse (179 reports). By breed: Retriever - Labrador (1,172), Crossbred Canine/dog (959), Chihuahua (813).

Most co-reported drugs: Milbemycin Oxime + Spinosad (2,768 reports), Ivermectin + Pyrantel As Pamoate Salt (1,319 reports), Spinosad (935 reports), Oclacitinib Maleate (773 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.