Reaction profile

The FDA adverse-event record for organ haemorrhage

44 FDA adverse-event reports reference organ haemorrhage (VeDDRA 2098). See the species, breeds, and drugs most associated with it below.

44
reports citing this reaction
84.1%
death-coded share
Dog
most-affected species
Milbemycin Oxime + Spinosad
most-associated drug
Verify with FDA CVM →
44
Total Reports
37
Deaths
84.1%
Death Rate

Species Most Affected

Dog 40
Cat 2
Chicken 1
Cattle 1

Breeds Most Affected

Retriever - Labrador 5
Shepherd Dog - German 4
Pit Bull 3
Retriever - Golden 3
Terrier - Boston 3
Domestic Shorthair 2
Terrier - West Highland White 2
Crossbred Canine/dog 2
Shepherd Dog - Australian 1
Corgi - Welsh Cardigan 1

Associated Drugs

Milbemycin Oxime + Spinosad 9
Spinosad 4
Rabies Vaccine 4
Oclacitinib Maleate 4
Afoxolaner 4
Milbemycin Oxime + Praziquantel 4
Fluralaner 13.64% 12-Week Chew 4
Famotidine 3
Maropitant Citrate 3
Fluralaner 3
Carprofen 3
Bordetella Vaccine 3
Blood Plasma 3
Benadryl 3
Cephalexin 2
Ivermectin 2
Metronidazole 2
Sucralfate 2
Methylprednisolone Acetate 2
Fluralaner Chew Tablets 2

Organ haemorrhage Reaction Insights

44 reports name Organ haemorrhage; 37 recorded a death outcome (84.1% of reported events, not a population-level mortality rate). VeDDRA code: 2098.

By species: Dog (40 reports), Cat (2 reports), Chicken (1 reports). By breed: Retriever - Labrador (5), Shepherd Dog - German (4), Pit Bull (3).

Most co-reported drugs: Milbemycin Oxime + Spinosad (9 reports), Spinosad (4 reports), Rabies Vaccine (4 reports), Oclacitinib Maleate (4 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.