Reaction profile

The FDA adverse-event record for application site scratching

1,110 FDA reports name application site scratching, a high-volume reaction in the CVM extract (VeDDRA 26). Plate stamps and neighbourhood peers follow.

#364 of 2,481
by report volume (all reactions)
1,110
reports citing this reaction
0.6%
death-coded share
Cat
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. Application site scratching has 1,110 reports now versus 1,086 in that prior snapshot: 24 more (2.2%).

Report change
+24
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 Application site scratching changes

FDA AER · VeDDRA plate

Code 26 VOL-MID

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

  • VOL-MID 1,110 reports
  • DEATH-RARE 0.6%
  • UPPER-Q #364/2481
  • PHOTO-FINISH Balance problem
  • SPECIES-CAT Cat · 937
  • DRUG-LEAD Fluralaner Spot-O… · 283
  • DESK-WIDE 20 breeds
  • BOOK-FULL 8/8 fields

Nearest volume peer: Balance problem (±1 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 Application site scratching

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

Vomiting · highest174348Sleepiness - neurolog… · near1112Balance problem · near1111Application site scra… · thi…1110Dermal mass · near1109Faecal incontinence · near1107Urinary tract neoplas… · low…10
FDA AER report volume · neighbourhood around Application site scratching

Application site scratching: low death-coded share in the FDA AER plate

Signature read: Application site scratching's 0.6% death-coded share is among the lowest in the openFDA reaction corpus. Report volume is upper-third scale: 1,110 named reports in the openFDA extract. Death-coded share is lower-third: 7 of 1,110 reports (0.6% of named reports). Nearest volume peer: Balance problem (±1 reports). Lead species Cat (937). Lead co-reported drug Fluralaner Spot-On Solution (283).

Read these counts as reporting volume, not risk: per our methodology, Lead co-reported drug Fluralaner Spot-On Solution 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

Cat 937
Dog 170
Horse 2
Rabbit 1

Breeds Most Affected

Domestic Shorthair 594
Domestic Longhair 74
Domestic Mediumhair 73
Cat (unknown) 49
Siamese 27
Cat (other) 23
Maine Coon 22
Retriever - Labrador 13
Retriever - Golden 12
Crossbred Canine/dog 11

Associated Drugs

Fluralaner Spot-On Solution 283
Selamectin 204
Selamectin;Sarolaner 141
Fluralaner/Moxidectin Spot-On 111
Imidacloprid + Moxidectin 75
Emodepside + Praziquantel 63
Eprinomectin + Esafoxolaner + Praziquantel 47
Fipronil 9.8%/S-Methoprene 8.8%/Cyphenothrin 5.2% Squeeze-On 37
Buprenorphine 35
Ivermectin + Pyrantel As Pamoate Salt 27
Ivermectin/Pyrantel Pamoate Chewable 68Mcg/163Mg 22
Imidacloprid, Flumethrin 17
Mirtazapine 16
Florfenicol, Terbinafine, Betamethasone Acetate 11
Fipronil 10%/S Methoprene 9% Spot On 10
Dexmedetomidine 10
Nitenpyram 9
Cefovecin 8
Imidacloprid + Pyriproxyfen 8
Flumethrin-Imidacloprid 7

Nationwide reactions with similar profiles

Two openFDA-derived peer sets for Application site scratching, 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 (1,110 here).

Similar death-coded share

Nearest other reactions by death-coded share (0.6% 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 Application site scratching (#364 of 2,481 by report volume); death-coded 0.6%. PlainBreed reaction plate · death-coded share stamp 0.6% · 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 →