Reaction profile

The FDA adverse-event record for blindness

2,463 FDA adverse-event reports reference blindness (VeDDRA 406). See the species, breeds, and drugs most associated with it below.

2,463
reports citing this reaction
23.9%
death-coded share
Dog
most-affected species
Milbemycin Oxime + Spinosad
most-associated drug
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2,463
Total Reports
589
Deaths
23.9%
Death Rate

Species Most Affected

Dog 1,699
Cat 688
Cattle 44
Horse 20
Goat 3
Chicken 3
Sheep 2
Human 2
Bobcat 1
Ferret 1

Breeds Most Affected

Domestic Shorthair 324
Crossbred Canine/dog 133
Retriever - Labrador 116
Domestic (unspecified) 106
Dog (unknown) 95
Terrier - Yorkshire 82
Chihuahua 78
Shih Tzu 64
Cat (unknown) 57
Shepherd Dog - German 50

Associated Drugs

Milbemycin Oxime + Spinosad 182
Ivermectin 163
Enrofloxacin 147
Spinosad 141
Carprofen 110
Trilostane 102
Cefovecin 96
Maropitant Citrate 90
Bedinvetmab 79
Fluralaner Chew Tablets 74
Buprenorphine 70
Isoflurane 67
Moxidectin 63
Afoxolaner 63
Frunevetmab 59
Meloxicam 57
Insulin Injectable Vial 57
Oclacitinib Maleate 57
Selamectin 56
Imidacloprid + Moxidectin 55

Blindness Reaction Insights

2,463 reports name Blindness; 589 recorded a death outcome (23.9% of reported events, not a population-level mortality rate). VeDDRA code: 406.

By species: Dog (1,699 reports), Cat (688 reports), Cattle (44 reports). By breed: Domestic Shorthair (324), Crossbred Canine/dog (133), Retriever - Labrador (116).

Most co-reported drugs: Milbemycin Oxime + Spinosad (182 reports), Ivermectin (163 reports), Enrofloxacin (147 reports), Spinosad (141 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.