Reaction profile

The FDA adverse-event record for internal ear disorder

145 FDA adverse-event reports reference internal ear disorder (VeDDRA 369). See the species, breeds, and drugs most associated with it below.

145
reports citing this reaction
11.0%
death-coded share
Dog
most-affected species
Betamethasone + Florfenicol + Terbinafine
most-associated drug
Verify with FDA CVM →
145
Total Reports
16
Deaths
11.0%
Death Rate

Species Most Affected

Dog 93
Cat 46
Human 3
Rabbit 3

Breeds Most Affected

Domestic Shorthair 27
Shih Tzu 6
Bulldog 6
Retriever - Labrador 5
Retriever - Golden 4
Beagle 4
Crossbred Canine/dog 4
Boxer (German Boxer) 4
Spaniel - Cocker American 4
Chihuahua 3

Associated Drugs

Betamethasone + Florfenicol + Terbinafine 19
Selamectin 13
Florfenicol/Terbinafine Hydrochloride/Mometasone Furoate 13
Maropitant Citrate 12
Enrofloxacin + Silver Sulfadiazine 10
Milbemycin Oxime + Spinosad 10
Prednisone 8
Miconazole + Polymyxin B + Prednisolone 8
Carprofen 7
Enrofloxacin 7
Ear Cleaner (Unknown) 7
Florfenicol + Mometasone Furoate + Terbinafine Hydrochloride 6
Imidacloprid + Moxidectin 5
Spinosad 5
Isoflurane 5
Miconazole Nitrate + Polymyxin B Sulfate + Prednisolone Acetate 5
Cefovecin 5
Oclacitinib Maleate 5
Saline 5
Cefovecin Sodium 5

Internal ear disorder Reaction Insights

145 reports name Internal ear disorder; 16 recorded a death outcome (11.0% of reported events, not a population-level mortality rate). VeDDRA code: 369.

By species: Dog (93 reports), Cat (46 reports), Human (3 reports). By breed: Domestic Shorthair (27), Shih Tzu (6), Bulldog (6).

Most co-reported drugs: Betamethasone + Florfenicol + Terbinafine (19 reports), Selamectin (13 reports), Florfenicol/Terbinafine Hydrochloride/Mometasone Furoate (13 reports), Maropitant Citrate (12 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.