Reaction profile

The FDA adverse-event record for nervous system disorder nos

58 FDA adverse-event reports reference nervous system disorder nos (VeDDRA 1642). See the species, breeds, and drugs most associated with it below.

58
reports citing this reaction
34.5%
death-coded share
Dog
most-affected species
Milbemycin Oxime + Spinosad
most-associated drug
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58
Total Reports
20
Deaths
34.5%
Death Rate

Species Most Affected

Dog 45
Cat 9
Cattle 3
Chicken 1

Breeds Most Affected

Boxer (German Boxer) 3
Crossbred Canine/dog 3
Domestic Shorthair 3
Terrier (unspecified) 3
Brittany 2
Bulldog 2
Shepherd Dog - German 2
Chihuahua 2
Terrier - Rat 2
Domestic Longhair 2

Associated Drugs

Milbemycin Oxime + Spinosad 16
Spinosad 6
Lotilaner 6
Oclacitinib Maleate 3
Buprenorphine 3
Monensin Sodium 2
Antibiotic (Unknown) 2
Enrofloxacin 2
Dexmedetomidine 2
Narasin 2
Maropitant Citrate 2
Bordetella Bronchiseptica Vaccine 2
Ondansetron Hcl 2
Fluralaner Chew Tablets 2
Metoclopramide 2
Metronidazole 2
Bedinvetmab 2
Tilmicosin Phosphate 1
Tylosin Phosphate 1
Filgrastim Injection 1

Nervous system disorder NOS Reaction Insights

58 reports name Nervous system disorder NOS; 20 recorded a death outcome (34.5% of reported events, not a population-level mortality rate). VeDDRA code: 1642.

By species: Dog (45 reports), Cat (9 reports), Cattle (3 reports). By breed: Boxer (German Boxer) (3), Crossbred Canine/dog (3), Domestic Shorthair (3).

Most co-reported drugs: Milbemycin Oxime + Spinosad (16 reports), Spinosad (6 reports), Lotilaner (6 reports), Oclacitinib Maleate (3 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.