Reaction profile

The FDA adverse-event record for unilateral paresis

17 FDA adverse-event reports reference unilateral paresis (VeDDRA 1154). See the species, breeds, and drugs most associated with it below.

17
reports citing this reaction
17.6%
death-coded share
Dog
most-affected species
Maropitant Citrate
most-associated drug
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17
Total Reports
3
Deaths
17.6%
Death Rate

Species Most Affected

Dog 12
Cat 3
Horse 1
Cattle 1

Breeds Most Affected

Domestic Shorthair 3
Retriever - Golden 1
Terrier - West Highland White 1
Boxer (German Boxer) 1
Terrier - Bull - American Pit 1
Chihuahua 1
Spitz - German Pomeranian 1
Shepherd Dog - German 1
Thoroughbred 1
Mixed (Cattle) 1

Associated Drugs

Maropitant Citrate 3
Frunevetmab 3
Bedinvetmab 3
Moxidectin 2
Ceftiofur Crystalline Free Acid 2
Prednisone 2
Monensin Sodium 1
Levothyroxine Sodium 1
Afoxolaner 2.27% Chewable Tablet (28.3 Mg) 1
Afoxolaner 1
Ivermectin + Pyrantel As Pamoate Salt 1
Firocoxib 1
Spinosad 1
Melarsomine Dihydrochloride Injection 1
Pyrantel Pamoate;Sarolaner 1
Rabies Virus, Kv 1
Intranasal Bordatella Vaccine 1
Oclacitinib Maleate 1
Carprofen 1
Gabapentin 1

Unilateral paresis Reaction Insights

17 reports name Unilateral paresis; 3 recorded a death outcome (17.6% of reported events, not a population-level mortality rate). VeDDRA code: 1154.

By species: Dog (12 reports), Cat (3 reports), Horse (1 reports). By breed: Domestic Shorthair (3), Retriever - Golden (1), Terrier - West Highland White (1).

Most co-reported drugs: Maropitant Citrate (3 reports), Frunevetmab (3 reports), Bedinvetmab (3 reports), Moxidectin (2 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.