Reaction profile

The FDA adverse-event record for leukaemia

85 FDA adverse-event reports reference leukaemia (VeDDRA 171). See the species, breeds, and drugs most associated with it below.

85
reports citing this reaction
62.4%
death-coded share
Dog
most-affected species
Oclacitinib Maleate
most-associated drug
Verify with FDA CVM →
85
Total Reports
53
Deaths
62.4%
Death Rate

Species Most Affected

Dog 68
Cat 17

Breeds Most Affected

Domestic Shorthair 13
Retriever - Golden 6
Shepherd Dog - German 6
Retriever - Labrador 5
Shih Tzu 4
Pit Bull 3
Dog (unknown) 3
Bulldog 3
Dachshund (unspecified) 2
Dog (other) 2

Associated Drugs

Oclacitinib Maleate 24
Milbemycin Oxime + Spinosad 8
Maropitant Citrate 7
Cefovecin 6
Ivermectin + Pyrantel As Pamoate Salt 6
Prednisone 5
Selamectin 5
Carprofen 5
Anti-Il31 Mab Mcs Lot #1283563 5
Cyclosporine A 4
Spinosad 4
Afoxolaner 4
Enrofloxacin 3
Moxidectin 3
Emodepside + Praziquantel 3
Fluralaner Chew Tablets 3
Milbemycin Oxime 3
Cyclosporine 3
Doxycycline 3
Imidacloprid + Permethrin + N-Methylpyrolidone 2

Leukaemia Reaction Insights

85 reports name Leukaemia; 53 recorded a death outcome (62.4% of reported events, not a population-level mortality rate). VeDDRA code: 171.

By species: Dog (68 reports), Cat (17 reports). By breed: Domestic Shorthair (13), Retriever - Golden (6), Shepherd Dog - German (6).

Most co-reported drugs: Oclacitinib Maleate (24 reports), Milbemycin Oxime + Spinosad (8 reports), Maropitant Citrate (7 reports), Cefovecin (6 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.