Reaction profile

The FDA adverse-event record for conjunctival reddening

31 FDA adverse-event reports reference conjunctival reddening (VeDDRA 2830). See the species, breeds, and drugs most associated with it below.

31
reports citing this reaction
9.7%
death-coded share
Dog
most-affected species
Maropitant Citrate
most-associated drug
Verify with FDA CVM →
31
Total Reports
3
Deaths
9.7%
Death Rate

Species Most Affected

Dog 29
Cat 2

Breeds Most Affected

Bulldog - French 5
Terrier - Bull - American Pit 4
Crossbred Canine/dog 3
Retriever - Labrador 2
Shih Tzu 2
Domestic Shorthair 2
Shepherd Dog - Australian 1
Dachshund (unspecified) 1
Doberman Pinscher 1
Terrier (unspecified) 1

Associated Drugs

Maropitant Citrate 8
Florfenicol + Mometasone Furoate + Terbinafine Hydrochloride 6
Diphenhydramine 6
Prednisone 5
Gabapentin 5
Tigilanol Tiglate 4
Carprofen 4
Ropinirole Hydrochloride 3
Dexamethasone Sodium Phosphate 3
Dexmedetomidine Hydrochloride 3
Buprenorphine 3
Butorphanol 3
Ketamine 3
Isoflurane 3
Ivermectin + Pyrantel As Pamoate Salt 2
Afoxolaner 2
Insulin Injectable Vial 2
Bordetella Vaccine 2
Rabies Vaccine 2
Fluralaner 13.64% 12-Week Chew 2

Conjunctival reddening Reaction Insights

31 reports name Conjunctival reddening; 3 recorded a death outcome (9.7% of reported events, not a population-level mortality rate). VeDDRA code: 2830.

By species: Dog (29 reports), Cat (2 reports). By breed: Bulldog - French (5), Terrier - Bull - American Pit (4), Crossbred Canine/dog (3).

Most co-reported drugs: Maropitant Citrate (8 reports), Florfenicol + Mometasone Furoate + Terbinafine Hydrochloride (6 reports), Diphenhydramine (6 reports), Prednisone (5 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.