Reaction profile

The FDA adverse-event record for bowel torsion

11 FDA adverse-event reports reference bowel torsion (VeDDRA 1068). See the species, breeds, and drugs most associated with it below.

11
reports citing this reaction
54.5%
death-coded share
Dog
most-affected species
Ponazuril
most-associated drug
Verify with FDA CVM →
11
Total Reports
6
Deaths
54.5%
Death Rate

Species Most Affected

Dog 6
Horse 3
Pig 1
Cattle 1

Breeds Most Affected

Retriever - Labrador 3
Thoroughbred 2
Crossbred Porcine/Pig 1
Holstein-Friesian also known as Holstein 1
Horse (unknown) 1
Terrier - Jack Russell 1
Deutsche Dogge, Great Dane 1
Terrier - Yorkshire 1

Associated Drugs

Ponazuril 1
Milbemycin Oxime + Spinosad 1
Clemastine Fumarate 1
Homeopathic Remedy 1
Spinosad 1
Tulathromycin 1
Sometribove 1
Melarsomine Dihydrochloride Injection 1
Ivermectin + Pyrantel As Pamoate Salt 1
N-Butylscopolaminium Bromide 1
Afoxolaner 1
Fenbendazol Oral Paste 1
Tigilanol Tiglate 1
Febantel + Praziquantel + Pyrantel Pamoate 1

Bowel torsion Reaction Insights

11 reports name Bowel torsion; 6 recorded a death outcome (54.5% of reported events, not a population-level mortality rate). VeDDRA code: 1068.

By species: Dog (6 reports), Horse (3 reports), Pig (1 reports). By breed: Retriever - Labrador (3), Thoroughbred (2), Crossbred Porcine/Pig (1).

Most co-reported drugs: Ponazuril (1 reports), Milbemycin Oxime + Spinosad (1 reports), Clemastine Fumarate (1 reports), Homeopathic Remedy (1 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.