Reaction profile

The FDA adverse-event record for hyperthermia

1,485 FDA adverse-event reports reference hyperthermia (VeDDRA 1014). See the species, breeds, and drugs most associated with it below.

1,485
reports citing this reaction
16.4%
death-coded share
Dog
most-affected species
Buprenorphine
most-associated drug
Verify with FDA CVM →
1,485
Total Reports
243
Deaths
16.4%
Death Rate

Species Most Affected

Dog 888
Cat 512
Horse 46
Cattle 20
Human 8
Pig 4
Other Canids 1
Cockatiel 1
Rabbit 1
Chicken 1

Breeds Most Affected

Domestic Shorthair 262
Retriever - Labrador 115
Cat (unknown) 86
Domestic Longhair 45
Crossbred Canine/dog 45
Shepherd Dog - German 43
Boxer (German Boxer) 38
Terrier - Yorkshire 33
Retriever - Golden 32
Dog (unknown) 32

Associated Drugs

Buprenorphine 313
Milbemycin Oxime + Spinosad 155
Isoflurane 151
Ketamine 99
Butorphanol 85
Maropitant Citrate 79
Dexmedetomidine Hydrochloride 77
Moxidectin 74
Dexmedetomidine 73
Afoxolaner 72
Propofol 66
Robenacoxib 64
Ketamine Hydrochloride 53
Spinosad 51
Meloxicam 49
Midazolam 45
Carprofen 41
Imidacloprid + Moxidectin 39
Butorphanol Tartrate 38
Cefovecin 37

Hyperthermia Reaction Insights

1,485 reports name Hyperthermia; 243 recorded a death outcome (16.4% of reported events, not a population-level mortality rate). VeDDRA code: 1014.

By species: Dog (888 reports), Cat (512 reports), Horse (46 reports). By breed: Domestic Shorthair (262), Retriever - Labrador (115), Cat (unknown) (86).

Most co-reported drugs: Buprenorphine (313 reports), Milbemycin Oxime + Spinosad (155 reports), Isoflurane (151 reports), Ketamine (99 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.