Reaction profile

The FDA adverse-event record for reduced level of consciousness

127 FDA adverse-event reports reference reduced level of consciousness (VeDDRA 1724). See the species, breeds, and drugs most associated with it below.

127
reports citing this reaction
28.3%
death-coded share
Dog
most-affected species
Milbemycin Oxime + Spinosad
most-associated drug
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127
Total Reports
36
Deaths
28.3%
Death Rate

Species Most Affected

Dog 105
Cat 20
Other Canids 1
Rabbit 1

Breeds Most Affected

Domestic Shorthair 11
Retriever - Labrador 10
Boxer (German Boxer) 8
Crossbred Canine/dog 8
Shih Tzu 6
Maltese 6
Chihuahua 5
Schnauzer - Miniature 3
Rottweiler 3
Bichon Frise 3

Associated Drugs

Milbemycin Oxime + Spinosad 30
Afoxolaner 14
Spinosad 11
Ivermectin + Pyrantel As Pamoate Salt 7
Gabapentin 7
Maropitant Citrate 6
Bedinvetmab 6
Moxidectin 5
Fluralaner Chew Tablets 5
Fluralaner 13.64% 12-Week Chew 5
Ivermectin 4
Sarolaner 4
Pyrantel Pamoate;Sarolaner 4
Grapiprant 4
Carprofen 3
Acepromazine Maleate 3
Capromorelin Tartrate 3
Lotilaner 3
Anesthetic (Unknown) 3
Meloxicam 3

Reduced level of consciousness Reaction Insights

127 reports name Reduced level of consciousness; 36 recorded a death outcome (28.3% of reported events, not a population-level mortality rate). VeDDRA code: 1724.

By species: Dog (105 reports), Cat (20 reports), Other Canids (1 reports). By breed: Domestic Shorthair (11), Retriever - Labrador (10), Boxer (German Boxer) (8).

Most co-reported drugs: Milbemycin Oxime + Spinosad (30 reports), Afoxolaner (14 reports), Spinosad (11 reports), Ivermectin + Pyrantel As Pamoate Salt (7 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.