Reaction profile

The FDA adverse-event record for mucocutaneous ulcer

50 FDA adverse-event reports reference mucocutaneous ulcer (VeDDRA 1920). See the species, breeds, and drugs most associated with it below.

50
reports citing this reaction
28.0%
death-coded share
Dog
most-affected species
Oclacitinib Maleate
most-associated drug
Verify with FDA CVM →
50
Total Reports
14
Deaths
28.0%
Death Rate

Species Most Affected

Dog 36
Cat 14

Breeds Most Affected

Retriever - Labrador 6
Shepherd Dog - German 5
Crossbred Canine/dog 4
Domestic (unspecified) 3
Cat (unknown) 3
Domestic Longhair 3
Domestic Shorthair 3
Dog (unknown) 3
Mastiff 2
Poodle - Miniature 2

Associated Drugs

Oclacitinib Maleate 11
Carprofen 7
Meloxicam 4
Cefpodoxime Proxetil 4
Cefovecin 4
Enrofloxacin 4
Prednisone 4
Cyclosporine A 3
Amoxicillin Trihydrate; Clavulanate Potassium ( K-Clavulanate) 3
Amoxicillin 3
Metronidazole 3
Gabapentin 3
Maropitant 3
Marbofloxacin 2
Dexmedetomidine Hydrochloride 2
Deracoxib 2
Cyclosporine 2
Firocoxib 2
Tramadol 2
Dexamethasone 2

Mucocutaneous ulcer Reaction Insights

50 reports name Mucocutaneous ulcer; 14 recorded a death outcome (28.0% of reported events, not a population-level mortality rate). VeDDRA code: 1920.

By species: Dog (36 reports), Cat (14 reports). By breed: Retriever - Labrador (6), Shepherd Dog - German (5), Crossbred Canine/dog (4).

Most co-reported drugs: Oclacitinib Maleate (11 reports), Carprofen (7 reports), Meloxicam (4 reports), Cefpodoxime Proxetil (4 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.