Reaction profile

The FDA adverse-event record for fatigue

219 FDA adverse-event reports reference fatigue (VeDDRA 1467). Plate codes and volume neighbourhood below; species, breeds, and drugs follow.

#984 of 2,481
by report volume (all reactions)
219
reports citing this reaction
9.6%
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. Fatigue has 219 reports now versus 215 in that prior snapshot: 4 more (1.9%).

Report change
+4
Death-coded reports
+1
Death-coded share
+0.3 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 Fatigue changes

FDA AER · VeDDRA plate

Code 1467 VOL-LOW

VOL-LOW · DEATH-PAR · MID-PACK · PHOTO-FINISH · SPECIES-DOG · DRUG-LEAD · DESK-WIDE · BOOK-FULL

  • VOL-LOW 219 reports
  • DEATH-PAR 9.6%
  • MID-PACK #984/2481
  • PHOTO-FINISH Fixed pupil
  • SPECIES-DOG Dog · 150
  • DRUG-LEAD Milbemycin Oxime… · 24
  • DESK-WIDE 20 breeds
  • BOOK-FULL 8/8 fields

Nearest volume peer: Fixed pupil (±0 reports)

Instrument codes from this reaction’s FDA CVM adverse-event extract: volume band, death-coded share, corpus rank, photo-finish peer, lead species, lead drug, breed desk, and book completeness. Not a clinical diagnosis.

Report-volume neighbourhood around Fatigue

Highest and lowest poles plus nearest volume peers, not a full 2,500-reaction corpus board reprint.

Vomiting · highest174348Circumstance or info… · near220Fatigue · this reaction219Fixed pupil · near219Itchy ears · near219PR-STOMACH, LESION(S) · near219Urinary tract neoplas… · low…10
FDA AER report volume · neighbourhood around Fatigue

What the FDA AER plate says about Fatigue

Signature read: death-coded share at 9.6% is the most distinctive outcome stamp on Fatigue. Report volume sits in the middle third of the reaction corpus. 21 of 219 reports were death-coded (9.6% of named reports, not a population mortality rate). Nearest volume peer: Fixed pupil (±0 reports). Lead species Dog (150). Lead co-reported drug Milbemycin Oxime + Spinosad (24).

Read these counts as reporting volume, not risk: per our methodology, Lead co-reported drug Milbemycin Oxime + Spinosad 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 150
Human 36
Cat 27
Horse 3
Pig 2
Cattle 1

Breeds Most Affected

Unknown 37
Retriever - Labrador 24
Domestic Shorthair 17
Crossbred Canine/dog 14
Retriever - Golden 12
Chihuahua 9
Shih Tzu 7
Dog (unknown) 7
Boxer (German Boxer) 6
Siberian Husky 5

Associated Drugs

Milbemycin Oxime + Spinosad 24
Trilostane 16
Maropitant Citrate 15
Afoxolaner 13
Sarolaner 13
Lotilaner 11
Milbemycin Oxime + Praziquantel 9
Gabapentin 9
Bedinvetmab 9
Carprofen 8
Enrofloxacin 8
Ivermectin 7
Ivermectin + Pyrantel As Pamoate Salt 7
Pimobendan 7
Fluralaner 13.64% 12-Week Chew 7
Oclacitinib Maleate 6
Grapiprant 6
Bexagliflozin 6
Metronidazole 5
Selamectin 5

Nationwide reactions with similar profiles

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

Similar death-coded share

Nearest other reactions by death-coded share (9.6% 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 Fatigue (#984 of 2,481 by report volume); death-coded 9.6%. PlainBreed reaction plate · death-coded share stamp 9.6% · 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 →