Reaction profile

The FDA adverse-event record for unwell

694 FDA reports name unwell, a high-volume reaction in the CVM extract (VeDDRA 2883). Plate stamps and neighbourhood peers follow.

#518 of 2,481
by report volume (all reactions)
694
reports citing this reaction
25.4%
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. Unwell has 694 reports now versus 620 in that prior snapshot: 74 more (11.9%).

Report change
+74
Death-coded reports
+15
Death-coded share
−0.6 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 Unwell changes

FDA AER · VeDDRA plate

Code 2883 VOL-MID

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

  • VOL-MID 694 reports
  • DEATH-HOT 25.4%
  • UPPER-Q #518/2481
  • PHOTO-FINISH Dysphoria
  • SPECIES-DOG Dog · 453
  • DRUG-LEAD Trilostane · 156
  • DESK-WIDE 20 breeds
  • BOOK-FULL 8/8 fields

Nearest volume peer: Dysphoria (±1 reports)

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

High-volume neighbourhood around Unwell

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

Vomiting · highest174348Expired drug administ… · near695Pleural effusion · near695Skin slough · near695Unwell · this reaction694Dysphoria · near693Urinary tract neoplas… · low…10
FDA AER report volume · neighbourhood around Unwell

Unwell: high death-coded share in the FDA AER plate

Signature read: 176 death-coded reports is a heavy tail count for Unwell in the CVM extract. Report volume is upper-third scale: 694 named reports in the openFDA extract. Death-coded share is upper-third: 176 of 694 reports (25.4% of named reports). Nearest volume peer: Dysphoria (±1 reports). Lead species Dog (453). Lead co-reported drug Trilostane (156).

Read these counts as reporting volume, not risk: per our methodology, A high death-coded share in FDA filings does not prove causation; co-reporting is voluntary temporal association only. Browse the full reactions index or the about page for how PlainBreed frames FDA CVM extracts.

Species Most Affected

Dog 453
Cat 220
Horse 10
Human 7
Cattle 4

Breeds Most Affected

Domestic Shorthair 133
Cat (unknown) 37
Retriever - Labrador 37
Crossbred Canine/dog 36
Dog (unknown) 31
Chihuahua 27
Retriever - Golden 23
Domestic Mediumhair 16
Shih Tzu 14
Terrier (unspecified) 14

Associated Drugs

Trilostane 156
Bexagliflozin 92
Bedinvetmab 77
Maropitant Citrate 74
Gabapentin 60
Prednisone 43
Carprofen 36
Fluid Therapy 35
Oclacitinib Maleate 30
Milbemycin Oxime + Praziquantel 30
Mirtazapine 28
Fluralaner 13.64% 12-Week Chew 26
Pyrantel Pamoate;Sarolaner 25
Lotilaner 21
Desoxycortone Pivalate 18
Metronidazole 18
Buprenorphine 17
Robenacoxib 16
Frunevetmab 15
Rabies Vaccine 15

Nationwide reactions with similar profiles

Two openFDA-derived peer sets for Unwell, 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 (694 here).

Similar death-coded share

Nearest other reactions by death-coded share (25.4% 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 Unwell (#518 of 2,481 by report volume); death-coded 25.4%. PlainBreed reaction plate · death-coded report count stamp 176 · 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 →