Reaction profile

The FDA adverse-event record for distension of abdomen

1,688 FDA adverse-event reports reference distension of abdomen (VeDDRA 312). See the species, breeds, and drugs most associated with it below.

1,688
reports citing this reaction
34.7%
death-coded share
Dog
most-affected species
Trilostane
most-associated drug
Verify with FDA CVM →
1,688
Total Reports
586
Deaths
34.7%
Death Rate

Species Most Affected

Dog 1,497
Cat 163
Horse 16
Cattle 6
Other Canids 1
Ferret 1
Chicken 1
Pig 1
Bison 1
Mouse 1

Breeds Most Affected

Retriever - Labrador 180
Crossbred Canine/dog 124
Chihuahua 85
Domestic Shorthair 79
Terrier - Yorkshire 70
Shih Tzu 43
Beagle 41
Maltese 41
Shepherd Dog - German 40
Retriever - Golden 39

Associated Drugs

Trilostane 329
Milbemycin Oxime + Spinosad 181
Carprofen 170
Maropitant Citrate 101
Oclacitinib Maleate 87
Deracoxib 82
Bedinvetmab 68
Gabapentin 58
Spinosad 56
Tramadol 52
Prednisone 52
Fluralaner Chew Tablets 49
Afoxolaner 46
Moxidectin 40
Fluralaner 13.64% 12-Week Chew 40
Meloxicam 39
Selamectin 37
Ivermectin + Pyrantel As Pamoate Salt 37
Famotidine 35
Metronidazole 33

Distension of abdomen Reaction Insights

1,688 reports name Distension of abdomen; 586 recorded a death outcome (34.7% of reported events, not a population-level mortality rate). VeDDRA code: 312.

By species: Dog (1,497 reports), Cat (163 reports), Horse (16 reports). By breed: Retriever - Labrador (180), Crossbred Canine/dog (124), Chihuahua (85).

Most co-reported drugs: Trilostane (329 reports), Milbemycin Oxime + Spinosad (181 reports), Carprofen (170 reports), Maropitant Citrate (101 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.