Reaction profile

The FDA adverse-event record for ileus

189 FDA adverse-event reports reference ileus (VeDDRA 1086). See the species, breeds, and drugs most associated with it below.

189
reports citing this reaction
21.2%
death-coded share
Dog
most-affected species
Maropitant Citrate
most-associated drug
Verify with FDA CVM →
189
Total Reports
40
Deaths
21.2%
Death Rate

Species Most Affected

Dog 153
Cat 23
Horse 11
Other Rodents 1
Unknown 1

Breeds Most Affected

Retriever - Labrador 22
Crossbred Canine/dog 14
Shih Tzu 12
Domestic Shorthair 12
Quarter Horse 7
Retriever - Golden 7
Maltese 6
Terrier - Yorkshire 6
Terrier - Jack Russell 5
Shepherd Dog - German 5

Associated Drugs

Maropitant Citrate 36
Carprofen 29
Milbemycin Oxime + Spinosad 17
Metoclopramide 16
Famotidine 16
Metronidazole 15
Gabapentin 13
Enrofloxacin 12
Deracoxib 11
Sucralfate 9
Fluralaner Chew Tablets 9
Ondansetron 9
Prednisone 8
Propofol 8
Rabies Vaccine 8
Isoflurane 8
Butorphanol 8
Tramadol 7
Omeprazole 7
Fentanyl 7

Ileus Reaction Insights

189 reports name Ileus; 40 recorded a death outcome (21.2% of reported events, not a population-level mortality rate). VeDDRA code: 1086.

By species: Dog (153 reports), Cat (23 reports), Horse (11 reports). By breed: Retriever - Labrador (22), Crossbred Canine/dog (14), Shih Tzu (12).

Most co-reported drugs: Maropitant Citrate (36 reports), Carprofen (29 reports), Milbemycin Oxime + Spinosad (17 reports), Metoclopramide (16 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.