Reaction profile

The FDA adverse-event record for fatigue

210 FDA adverse-event reports reference fatigue (VeDDRA 1467). See the species, breeds, and drugs most associated with it below.

210
reports citing this reaction
8.1%
death-coded share
Dog
most-affected species
Milbemycin Oxime + Spinosad
most-associated drug
Verify with FDA CVM →
210
Total Reports
17
Deaths
8.1%
Death Rate

Species Most Affected

Dog 145
Human 36
Cat 23
Horse 3
Pig 2
Cattle 1

Breeds Most Affected

Unknown 37
Retriever - Labrador 23
Crossbred Canine/dog 14
Domestic Shorthair 14
Retriever - Golden 11
Chihuahua 8
Shih Tzu 7
Dog (unknown) 7
Boxer (German Boxer) 6
Collie - Border 5

Associated Drugs

Milbemycin Oxime + Spinosad 24
Maropitant Citrate 15
Trilostane 13
Afoxolaner 13
Sarolaner 13
Lotilaner 11
Milbemycin Oxime + Praziquantel 9
Gabapentin 9
Bedinvetmab 9
Carprofen 8
Enrofloxacin 8
Ivermectin 7
Ivermectin + Pyrantel As Pamoate Salt 7
Pimobendan 7
Oclacitinib Maleate 6
Grapiprant 6
Fluralaner 13.64% 12-Week Chew 6
Metronidazole 5
Selamectin 5
Cyclosporine 5

Fatigue Reaction Insights

210 reports name Fatigue; 17 recorded a death outcome (8.1% of reported events, not a population-level mortality rate). VeDDRA code: 1467.

By species: Dog (145 reports), Human (36 reports), Cat (23 reports). By breed: Unknown (37), Retriever - Labrador (23), Crossbred Canine/dog (14).

Most co-reported drugs: Milbemycin Oxime + Spinosad (24 reports), Maropitant Citrate (15 reports), Trilostane (13 reports), Afoxolaner (13 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.