Reaction profile

The FDA adverse-event record for intestinal occlusion

35 FDA adverse-event reports reference intestinal occlusion (VeDDRA 2095). See the species, breeds, and drugs most associated with it below.

35
reports citing this reaction
31.4%
death-coded share
Dog
most-affected species
Ivermectin + Pyrantel As Pamoate Salt
most-associated drug
Verify with FDA CVM →
35
Total Reports
11
Deaths
31.4%
Death Rate

Species Most Affected

Dog 30
Horse 3
Cat 2

Breeds Most Affected

Crossbred Canine/dog 3
Chihuahua 3
Dachshund (unspecified) 2
Sheepdog - Shetland 2
Doberman Pinscher 2
Terrier - West Highland White 2
Dachshund - Miniature 2
Schnauzer - Miniature 2
Poodle - Miniature 1
Boxer (German Boxer) 1

Associated Drugs

Ivermectin + Pyrantel As Pamoate Salt 12
Milbemycin Oxime + Spinosad 5
Ivermectin/Pyrantel Pamoate Chewable 68Mcg/163Mg 2
Fluralaner Chew Tablets 2
Equine Influenza Virus, Killed Virus + Equine Rhinopneumonitis Virus, Killed Virus 2
Cyclosporine 1
Prednisolone Trimeprazine Tartrate 1
Ivermectin/Pyrantel Pamoate Chewable 136Mcg/326Mg 1
Trilostane 1
Praziquantel + Pyrantel 1
Imidacloprid + Pyriproxyfen 1
Ivermectin, Pyrantel 1
Recombinant Human Insulin 1
Prednisolone (Ophthalmic) 1
Deracoxib 1
Serum Ophthalmic Drops 1
Clodronate Disodium 1
Flunixin Meglumine 1
Fluid Therapy 1
Desoxycortone 1

Intestinal occlusion Reaction Insights

35 reports name Intestinal occlusion; 11 recorded a death outcome (31.4% of reported events, not a population-level mortality rate). VeDDRA code: 2095.

By species: Dog (30 reports), Horse (3 reports), Cat (2 reports). By breed: Crossbred Canine/dog (3), Chihuahua (3), Dachshund (unspecified) (2).

Most co-reported drugs: Ivermectin + Pyrantel As Pamoate Salt (12 reports), Milbemycin Oxime + Spinosad (5 reports), Ivermectin/Pyrantel Pamoate Chewable 68Mcg/163Mg (2 reports), Fluralaner Chew Tablets (2 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.