Reaction profile

The FDA adverse-event record for swallowing disorder nos

173 FDA adverse-event reports reference swallowing disorder nos (VeDDRA 1809). See the species, breeds, and drugs most associated with it below.

173
reports citing this reaction
12.1%
death-coded share
Dog
most-affected species
Milbemycin Oxime + Spinosad
most-associated drug
Verify with FDA CVM →
173
Total Reports
21
Deaths
12.1%
Death Rate

Species Most Affected

Dog 132
Cat 40
Horse 1

Breeds Most Affected

Domestic Shorthair 25
Chihuahua 12
Crossbred Canine/dog 9
Shepherd Dog - Australian 8
Retriever - Golden 8
Retriever - Labrador 8
Dog (unknown) 8
Terrier - Yorkshire 7
Domestic Mediumhair 6
Cattle Dog - Australian (blue heeler, red heeler, Queensland cattledog) 5

Associated Drugs

Milbemycin Oxime + Spinosad 24
Maropitant Citrate 12
Milbemycin Oxime + Praziquantel 12
Afoxolaner 10
Carprofen 10
Sarolaner 7
Spinosad 6
Imidacloprid + Moxidectin 6
Enrofloxacin 6
Ivermectin + Pyrantel As Pamoate Salt 6
Famotidine 5
Moxidectin 5
Fluralaner Chew Tablets 5
Fluralaner Spot-On Solution 5
Pyrantel Pamoate;Sarolaner 5
Frunevetmab 5
Metronidazole 4
Selamectin 4
Cefovecin 4
Selamectin;Sarolaner 4

Swallowing disorder NOS Reaction Insights

173 reports name Swallowing disorder NOS; 21 recorded a death outcome (12.1% of reported events, not a population-level mortality rate). VeDDRA code: 1809.

By species: Dog (132 reports), Cat (40 reports), Horse (1 reports). By breed: Domestic Shorthair (25), Chihuahua (12), Crossbred Canine/dog (9).

Most co-reported drugs: Milbemycin Oxime + Spinosad (24 reports), Maropitant Citrate (12 reports), Milbemycin Oxime + Praziquantel (12 reports), Afoxolaner (10 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.