Reaction profile

The FDA adverse-event record for pharyngitis

64 FDA adverse-event reports reference pharyngitis (VeDDRA 280). See the species, breeds, and drugs most associated with it below.

64
reports citing this reaction
6.3%
death-coded share
Human
most-affected species
Selamectin
most-associated drug
Verify with FDA CVM →
64
Total Reports
4
Deaths
6.3%
Death Rate

Species Most Affected

Human 33
Dog 21
Cat 6
Horse 4

Breeds Most Affected

Unknown 33
Crossbred Canine/dog 3
Retriever - Labrador 3
Domestic Shorthair 3
Domestic (unspecified) 2
Thoroughbred 2
Boxer (German Boxer) 2
Crossbred Equine/horse 1
Bichon Frise 1
Dachshund (unspecified) 1

Associated Drugs

Selamectin 7
Milbemycin Oxime + Spinosad 7
Isoflurane 7
Imidacloprid, Moxidectin 4
Spinosad 4
Cyclosporine 4
Carprofen 4
Amprolium 3
Ivermectin, Praziquantel 2
Tilmicosin Phosphate 2
Firocoxib 2
Eprinomectin 2
Fenbendazole 2
Milbemycin Oxime + Praziquantel 2
Afoxolaner 2
Polysulfated Glycosaminoglycan 2
Maropitant 1
Glycosaminoglycan Polysulfate 1
Ivermectin, Pyrantel 1
Ampicillin Trihydrate 1

Pharyngitis Reaction Insights

64 reports name Pharyngitis; 4 recorded a death outcome (6.3% of reported events, not a population-level mortality rate). VeDDRA code: 280.

By species: Human (33 reports), Dog (21 reports), Cat (6 reports). By breed: Unknown (33), Crossbred Canine/dog (3), Retriever - Labrador (3).

Most co-reported drugs: Selamectin (7 reports), Milbemycin Oxime + Spinosad (7 reports), Isoflurane (7 reports), Imidacloprid, Moxidectin (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.