Reaction profile

The FDA adverse-event record for hyperthermia

1,557 FDA reports name hyperthermia, a high-volume reaction in the CVM extract (VeDDRA 1014). Plate stamps and neighbourhood peers follow.

#276 of 2,481
by report volume (all reactions)
1,557
reports citing this reaction
16.4%
death-coded share
Dog
most-affected species

Release-over-release change

What changed in the latest FDA data snapshot

PlainBreed reconstructed the prior snapshot from dated openFDA partitions through 2025 Q4, then compared it with the 2026-07-27 openFDA export. Hyperthermia has 1,557 reports now versus 1,526 in that prior snapshot: 31 more (2.0%).

Report change
+31
Death-coded reports
+4
Death-coded share
−0.1 pts

This compares reported-event counts in two source snapshots. It does not establish a change in real-world risk, product safety, or disease incidence.

Subscribe to Hyperthermia changes

FDA AER · VeDDRA plate

Code 1014 VOL-MID

VOL-MID · DEATH-ELEV · UPPER-Q · PHOTO-FINISH · SPECIES-DOG · DRUG-LEAD · DESK-WIDE · BOOK-FULL

  • VOL-MID 1,557 reports
  • DEATH-ELEV 16.4%
  • UPPER-Q #276/2481
  • PHOTO-FINISH Azotaemia
  • SPECIES-DOG Dog · 914
  • DRUG-LEAD Buprenorphine · 347
  • DESK-WIDE 20 breeds
  • BOOK-FULL 8/8 fields

Nearest volume peer: Azotaemia (±0 reports)

Upper-third report volume drives the scale stamps on this plate; death-coded share and co-report peers follow. Not a clinical diagnosis.

High-volume neighbourhood around Hyperthermia

Upper-third volume poles plus nearest peers, not a full reaction corpus board reprint.

Vomiting · highest174348Azotaemia · near1557Hyperthermia · this reaction1557Generalised itching · near1555Arthritis · near1535Increased respiratory… · near1534Urinary tract neoplas… · low…10
FDA AER report volume · neighbourhood around Hyperthermia

What the FDA AER plate says about Hyperthermia

Signature read: 255 death-coded reports is a heavy tail count for Hyperthermia in the CVM extract. Report volume is upper-third scale: 1,557 named reports in the openFDA extract. 255 of 1,557 reports were death-coded (16.4% of named reports, not a population mortality rate). Nearest volume peer: Azotaemia (±0 reports). Lead species Dog (914). Lead co-reported drug Buprenorphine (347).

Read these counts as reporting volume, not risk: per our methodology, Lead co-reported drug Buprenorphine appears in filings alongside this reaction; that is association, not causation. Browse the full reactions index or the about page for how PlainBreed frames FDA CVM extracts.

Species Most Affected

Dog 914
Cat 558
Horse 46
Cattle 20
Human 8
Pig 4
Other Canids 1
Cockatiel 1
Rabbit 1
Chicken 1

Breeds Most Affected

Domestic Shorthair 284
Retriever - Labrador 119
Cat (unknown) 96
Domestic Longhair 48
Crossbred Canine/dog 47
Shepherd Dog - German 45
Boxer (German Boxer) 40
Terrier - Yorkshire 34
Dog (unknown) 33
Retriever - Golden 32

Associated Drugs

Buprenorphine 347
Isoflurane 172
Milbemycin Oxime + Spinosad 155
Ketamine 104
Butorphanol 90
Maropitant Citrate 89
Dexmedetomidine 83
Dexmedetomidine Hydrochloride 82
Moxidectin 77
Robenacoxib 76
Afoxolaner 75
Propofol 71
Ketamine Hydrochloride 58
Spinosad 51
Meloxicam 50
Midazolam 48
Carprofen 43
Butorphanol Tartrate 41
Gabapentin 41
Imidacloprid + Moxidectin 39

Nationwide reactions with similar profiles

Two openFDA-derived peer sets for Hyperthermia, both floored at ≥50 reports so the neighborhoods stay in the advertised mass (the volume chart above is the unfloored photo-finish strip).

Similar report volume

Nearest other reactions by FDA report count (1,557 here).

Similar death-coded share

Nearest other reactions by death-coded share (16.4% here), distinct from the volume row.

What to do with this reaction

A report does not prove a drug caused the reaction; consult a veterinarian before acting on this data.

Source: FDA Center for Veterinary Medicine openFDA Animal & Veterinary Adverse Events (CVM AER) · 2025

openFDA Animal & Veterinary Adverse Events (FDA CVM) for Hyperthermia (#276 of 2,481 by report volume); death-coded 16.4%. PlainBreed reaction plate · death-coded report count stamp 255 · vintage 2025.

Informational only. FDA adverse-event reports are voluntary and do not prove causation; consult a veterinarian before acting on them. Verify with FDA CVM →