Reaction profile

The FDA adverse-event record for ear flap oedema

96 FDA adverse-event reports reference ear flap oedema (VeDDRA 364). See the species, breeds, and drugs most associated with it below.

96
reports citing this reaction
2.1%
death-coded share
Dog
most-affected species
Moxidectin
most-associated drug
Verify with FDA CVM →
96
Total Reports
2
Deaths
2.1%
Death Rate

Species Most Affected

Dog 91
Cat 3
Cattle 2

Breeds Most Affected

Retriever - Labrador 20
Retriever - Golden 11
Crossbred Canine/dog 6
Dachshund (unspecified) 6
Boxer (German Boxer) 4
Lhasa Apso 3
Chihuahua 3
Dog (unknown) 2
Domestic Shorthair 2
Coonhound (unspecified) 2

Associated Drugs

Moxidectin 13
Milbemycin Oxime + Spinosad 11
Afoxolaner 9
Oclacitinib Maleate 8
Carprofen 5
Cephalexin 4
Maropitant Citrate 4
Prednisone 4
Deracoxib 4
Milbemycin Oxime + Praziquantel 4
Diphenhydramine 4
Cyclosporine 4
Spinosad 3
Cefpodoxime Proxetil 3
Leptospira Canicola L-15 Strain C-51; Leptospira Grippotyphosa 1550 Lot 10005 St 3
Rabies Virus, Kv 3
Fluralaner Chew Tablets 3
Anti-Il31 Mab Mcs Lot #1283563 3
Leptospira Canicola L-15 Strain C-51;Leptospira Grippotyphosa 1550 Lot 10005 Str 3
Imidacloprid + Moxidectin 2

Ear flap oedema Reaction Insights

96 reports name Ear flap oedema; 2 recorded a death outcome (2.1% of reported events, not a population-level mortality rate). VeDDRA code: 364.

By species: Dog (91 reports), Cat (3 reports), Cattle (2 reports). By breed: Retriever - Labrador (20), Retriever - Golden (11), Crossbred Canine/dog (6).

Most co-reported drugs: Moxidectin (13 reports), Milbemycin Oxime + Spinosad (11 reports), Afoxolaner (9 reports), Oclacitinib Maleate (8 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.