Reaction profile

The FDA adverse-event record for external ear disorder nos

423 FDA adverse-event reports reference external ear disorder nos (VeDDRA 354). See the species, breeds, and drugs most associated with it below.

423
reports citing this reaction
7.8%
death-coded share
Dog
most-affected species
Milbemycin Oxime + Spinosad
most-associated drug
Verify with FDA CVM →
423
Total Reports
33
Deaths
7.8%
Death Rate

Species Most Affected

Dog 334
Cat 74
Human 5
Pig 3
Cattle 3
Rabbit 3
Donkey 1

Breeds Most Affected

Retriever - Labrador 44
Domestic Shorthair 33
Crossbred Canine/dog 17
Retriever - Golden 16
Domestic (unspecified) 15
Chihuahua 14
Terrier - Yorkshire 14
Shih Tzu 12
Shepherd Dog - German 11
Spaniel - Cocker American 9

Associated Drugs

Milbemycin Oxime + Spinosad 75
Betamethasone + Florfenicol + Terbinafine 43
Selamectin 26
Spinosad 20
Oclacitinib Maleate 17
Milbemycin Oxime + Praziquantel 17
Carprofen 14
Imidacloprid + Moxidectin 14
Trilostane 14
Moxidectin 12
Afoxolaner 12
Florfenicol + Mometasone Furoate + Terbinafine Hydrochloride 12
Clotrimazole, Gentamicin Sulfate, Mometasone Furoate Monohydrate 11
Cefovecin Sodium 10
Prednisone 10
Ivermectin 9
Maropitant Citrate 9
Cyclosporine 8
Nitenpyram 8
Rabies Vaccine 8

External ear disorder NOS Reaction Insights

423 reports name External ear disorder NOS; 33 recorded a death outcome (7.8% of reported events, not a population-level mortality rate). VeDDRA code: 354.

By species: Dog (334 reports), Cat (74 reports), Human (5 reports). By breed: Retriever - Labrador (44), Domestic Shorthair (33), Crossbred Canine/dog (17).

Most co-reported drugs: Milbemycin Oxime + Spinosad (75 reports), Betamethasone + Florfenicol + Terbinafine (43 reports), Selamectin (26 reports), Spinosad (20 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.