Reaction profile

The FDA adverse-event record for behavioural disorder nos

23,625 FDA adverse-event reports reference behavioural disorder nos (VeDDRA 116). See the species, breeds, and drugs most associated with it below.

23,625
reports citing this reaction
8.3%
death-coded share
Dog
most-affected species
Milbemycin Oxime + Spinosad
most-associated drug
Verify with FDA CVM →
23,625
Total Reports
1,969
Deaths
8.3%
Death Rate

Species Most Affected

Dog 16,969
Cat 5,987
Horse 361
Cattle 210
Pig 24
Turkey 13
Chicken 9
Rabbit 9
Sheep 5
Goat 5

Breeds Most Affected

Domestic Shorthair 3,243
Retriever - Labrador 1,499
Crossbred Canine/dog 1,289
Chihuahua 946
Terrier - Yorkshire 773
Cat (unknown) 701
Dog (unknown) 696
Retriever - Golden 658
Shih Tzu 654
Domestic Longhair 542

Associated Drugs

Milbemycin Oxime + Spinosad 4,102
Imidacloprid + Moxidectin 1,768
Spinosad 1,364
Afoxolaner 1,250
Buprenorphine 984
Selamectin 945
Ivermectin + Pyrantel As Pamoate Salt 757
Oclacitinib Maleate 725
Milbemycin Oxime + Praziquantel 713
Fluralaner Chew Tablets 700
Carprofen 668
Nitenpyram 640
Maropitant Citrate 607
Pyrantel Pamoate;Sarolaner 602
Sarolaner 518
Trilostane 497
Lotilaner 492
Fluralaner Spot-On Solution 429
Gabapentin 421
Moxidectin 412

Behavioural disorder NOS Reaction Insights

23,625 reports name Behavioural disorder NOS; 1,969 recorded a death outcome (8.3% of reported events, not a population-level mortality rate). VeDDRA code: 116.

By species: Dog (16,969 reports), Cat (5,987 reports), Horse (361 reports). By breed: Domestic Shorthair (3,243), Retriever - Labrador (1,499), Crossbred Canine/dog (1,289).

Most co-reported drugs: Milbemycin Oxime + Spinosad (4,102 reports), Imidacloprid + Moxidectin (1,768 reports), Spinosad (1,364 reports), Afoxolaner (1,250 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.