Reaction profile

The FDA adverse-event record for rash

2,339 FDA reports name rash, a high-volume reaction in the CVM extract (VeDDRA 939). Plate stamps and neighbourhood peers follow.

#199 of 2,481
by report volume (all reactions)
2,339
reports citing this reaction
1.9%
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. Rash has 2,339 reports now versus 2,321 in that prior snapshot: 18 more (0.8%).

Report change
+18
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 Rash changes

FDA AER · VeDDRA plate

Code 939 VOL-MID

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

  • VOL-MID 2,339 reports
  • DEATH-LOW 1.9%
  • TOP-DECILE #199/2481
  • PHOTO-FINISH Dispenser, Abnormal
  • SPECIES-DOG Dog · 1,914
  • DRUG-LEAD Milbemycin Oxime… · 381
  • DESK-WIDE 20 breeds
  • BOOK-FULL 8/8 fields

Nearest volume peer: Dispenser, Abnormal (±11 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 Rash

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

Vomiting · highest174348Neutropenia · near2374Dispenser, Abnormal · near2350Rash · this reaction2339Heart murmur · near2328Blood in faeces · near2312Urinary tract neoplas… · low…10
FDA AER report volume · neighbourhood around Rash

Rash: low death-coded share in the FDA AER plate

Signature read: 2,339 reports place Rash in the upper third of FDA AER volume (#199 of 2,481). Report volume is upper-third scale: 2,339 named reports in the openFDA extract. Death-coded share is lower-third: 44 of 2,339 reports (1.9% of named reports). Nearest volume peer: Dispenser, Abnormal (±11 reports). Lead species Dog (1,914). Lead co-reported drug Milbemycin Oxime + Spinosad (381).

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 1,914
Human 275
Cat 135
Horse 7
Cattle 3
Pig 2
Other 1
Monkey 1
Ferret 1

Breeds Most Affected

Unknown 282
Crossbred Canine/dog 153
Retriever - Labrador 132
Chihuahua 110
Dog (unknown) 97
Pit Bull 96
Terrier - Yorkshire 79
Retriever - Golden 75
Domestic Shorthair 72
Shepherd Dog - German 66

Associated Drugs

Milbemycin Oxime + Spinosad 381
Afoxolaner 269
Spinosad 212
Selamectin 168
Ivermectin + Pyrantel As Pamoate Salt 119
Imidacloprid + Moxidectin 112
Pyrantel Pamoate;Sarolaner 99
Oclacitinib Maleate 82
Moxidectin 69
Milbemycin Oxime + Praziquantel 66
Nitenpyram 58
Fluralaner Chew Tablets 57
Fluralaner 13.64% 12-Week Chew 52
Prednisone 47
Carprofen 46
Maropitant Citrate 41
Ivermectin 35
Lotilaner 34
Sarolaner 33
Frunevetmab 32

Nationwide reactions with similar profiles

Two openFDA-derived peer sets for Rash, 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 (2,339 here).

Similar death-coded share

Nearest other reactions by death-coded share (1.9% 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 Rash (#199 of 2,481 by report volume); death-coded 1.9%. PlainBreed reaction plate · report volume stamp 2,339 · 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 →