Reaction profile

The FDA adverse-event record for abdominal mass

611 FDA adverse-event reports reference abdominal mass (VeDDRA 2277). See the species, breeds, and drugs most associated with it below.

611
reports citing this reaction
58.1%
death-coded share
Dog
most-affected species
Oclacitinib Maleate
most-associated drug
Verify with FDA CVM →
611
Total Reports
355
Deaths
58.1%
Death Rate

Species Most Affected

Dog 508
Cat 98
Horse 2
Ferret 2
Fish 1

Breeds Most Affected

Retriever - Labrador 73
Crossbred Canine/dog 38
Domestic Shorthair 37
Retriever - Golden 34
Beagle 19
Terrier - Yorkshire 18
Shepherd Dog - German 16
Chihuahua 14
Shepherd Dog - Australian 11
Domestic (unspecified) 10

Associated Drugs

Oclacitinib Maleate 78
Trilostane 67
Milbemycin Oxime + Spinosad 56
Carprofen 53
Bedinvetmab 48
Maropitant Citrate 43
Fluralaner Chew Tablets 40
Afoxolaner 32
Gabapentin 31
Grapiprant 30
Ivermectin + Pyrantel As Pamoate Salt 22
Prednisone 20
Fluralaner 13.64% 12-Week Chew 18
Metronidazole 17
Spinosad 16
Cefovecin 14
Moxidectin 14
Fluralaner Spot-On Solution 13
Meloxicam 12
Polysulfated Glycosaminoglycan 12

Abdominal mass Reaction Insights

611 reports name Abdominal mass; 355 recorded a death outcome (58.1% of reported events, not a population-level mortality rate). VeDDRA code: 2277.

By species: Dog (508 reports), Cat (98 reports), Horse (2 reports). By breed: Retriever - Labrador (73), Crossbred Canine/dog (38), Domestic Shorthair (37).

Most co-reported drugs: Oclacitinib Maleate (78 reports), Trilostane (67 reports), Milbemycin Oxime + Spinosad (56 reports), Carprofen (53 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.