Reaction profile

The FDA adverse-event record for color, abnormal

8,087 FDA reports name color, abnormal, a high-volume reaction in the CVM extract (VeDDRA 99003). Plate stamps and neighbourhood peers follow.

#58 of 2,481
by report volume (all reactions)
8,087
reports citing this reaction
0.2%
death-coded share
Unknown
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. Color, Abnormal has 8,087 reports now versus 7,976 in that prior snapshot: 111 more (1.4%).

Report change
+111
Death-coded reports
+0
Death-coded share
−0.0 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 Color, Abnormal changes

FDA AER · VeDDRA plate

Code 99003 VOL-HIGH

VOL-HIGH · DEATH-RARE · TOP-DECILE · PHOTO-FINISH · SPECIES-UNKNOWN · DRUG-LEAD · DESK-WIDE · BOOK-FULL

  • VOL-HIGH 8,087 reports
  • DEATH-RARE 0.2%
  • TOP-DECILE #58/2481
  • PHOTO-FINISH Application site hair…
  • SPECIES-UNKNOWN Unknown · 7,797
  • DRUG-LEAD Amoxicillin Trihy… · 2,102
  • DESK-WIDE 20 breeds
  • BOOK-FULL 8/8 fields

Nearest volume peer: Application site hair loss (±40 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 Color, Abnormal

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

Vomiting · highest174348Lack of efficacy (end… · near8280Application site hair… · near8127Color, Abnormal · this react…8087Tremor · near8033Drooling · near7886Urinary tract neoplas… · low…10
FDA AER report volume · neighbourhood around Color, Abnormal

Color, Abnormal: low death-coded share in the FDA AER plate

Signature read: 8,087 reports place Color, Abnormal in the upper third of FDA AER volume (#58 of 2,481). Report volume is upper-third scale: 8,087 named reports in the openFDA extract. Death-coded share is lower-third: 19 of 8,087 reports (0.2% of named reports). Nearest volume peer: Application site hair loss (±40 reports). Lead species Unknown (7,797). Lead co-reported drug Amoxicillin Trihydrate;Clavulanate Potassium ( K-Clavulanate) (2,102).

Read these counts as reporting volume, not risk: per our methodology, Lead co-reported drug Amoxicillin Trihydrate;Clavulanate Potassium ( K-Clavulanate) 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

Unknown 7,797
Dog 176
Cat 78
Cattle 13
Horse 8
Human 8
Rat 2
Mouse 2
Sheep 1
Chicken 1

Breeds Most Affected

Unknown 7,815
Domestic Shorthair 34
Dog (unknown) 20
Crossbred Canine/dog 18
Retriever - Labrador 16
Cat (other) 16
Terrier - Yorkshire 11
Domestic (unspecified) 9
Maltese 8
Cat (unknown) 7

Associated Drugs

Amoxicillin Trihydrate;Clavulanate Potassium ( K-Clavulanate) 2,102
Amoxicillin, Clavulanate 771
Cefovecin 393
Ivermectin + Pyrantel As Pamoate Salt 344
Propofol 338
Amoxicillin (As Trihydrate); Clavulanate Potassium ( K-Clavulanate) 305
Amoxicillin Trihydrate; Clavulanate Potassium ( K-Clavulanate) 295
Polysulfated Glycosaminoglycan 268
Moxidectin 246
Maropitant Citrate 186
Furosemide 161
Amoxicillin As Amoxicillin Trihydrate; Clavulanate Potassium ( K-Clavulanate) 158
Selamectin 150
Furosemide Injection 141
Amoxicillin As Trihydrate; Clavulanate Potassium ( K-Clavulanate) 134
Ceftiofur Sodium 133
Oclacitinib Maleate 87
Pyrantel Pamoate;Sarolaner 76
Deracoxib 67
Carprofen 55

Nationwide reactions with similar profiles

Two openFDA-derived peer sets for Color, Abnormal, 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 (8,087 here).

Similar death-coded share

Nearest other reactions by death-coded share (0.2% 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 Color, Abnormal (#58 of 2,481 by report volume); death-coded 0.2%. PlainBreed reaction plate · report volume stamp 8,087 · 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 →