Reaction profile

The FDA adverse-event record for application site necrosis

78 FDA adverse-event reports reference application site necrosis (VeDDRA 18). Plate codes and volume neighbourhood below; species, breeds, and drugs follow.

#1513 of 2,481
by report volume (all reactions)
78
reports citing this reaction
7.7%
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 necrosis has 78 reports now versus 78 in that prior snapshot: 0 the same number of (0.0%).

Report change
+0
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 necrosis changes

FDA AER · VeDDRA plate

Code 18 VOL-LOW

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

  • VOL-LOW 78 reports
  • DEATH-PAR 7.7%
  • MID-PACK #1513/2481
  • PHOTO-FINISH Abnormal Schirmer tea…
  • SPECIES-CAT Cat · 38
  • DRUG-LEAD Selamectin · 16
  • DESK-WIDE 20 breeds
  • BOOK-FULL 8/8 fields

Nearest volume peer: Abnormal Schirmer tear test (±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 Application site necrosis

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

Vomiting · highest174348Abnormal electrocardi… · near79Abnormal Schirmer tea… · near78Application site necr… · thi…78Urticarial rash · near78Application site twit… · near77Urinary tract neoplas… · low…10
FDA AER report volume · neighbourhood around Application site necrosis

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

Signature read: 6 death-coded reports is a thin tail count for Application site necrosis in the CVM extract. Report volume sits in the middle third of the reaction corpus. Death-coded share is lower-third: 6 of 78 reports (7.7% of named reports). Nearest volume peer: Abnormal Schirmer tear test (±0 reports). Lead species Cat (38). Lead co-reported drug Selamectin (16).

Read these counts as reporting volume, not risk: per our methodology, Lead co-reported drug Selamectin 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 38
Dog 30
Horse 4
Cattle 4
Human 1
Frog 1

Breeds Most Affected

Domestic Shorthair 25
Dog (unknown) 5
Domestic Mediumhair 4
Cat (unknown) 3
Maltese 2
Cattle (other) 2
Shepherd Dog - German 2
Chihuahua 2
Crossbred Canine/dog 2
Terrier - Yorkshire 2

Associated Drugs

Selamectin 16
Imidacloprid + Moxidectin 10
Mirtazapine 6
Emodepside + Praziquantel 4
Bupivacaine Lipsome Injectable Suspension 4
Carprofen 4
Fluralaner Spot-On Solution 4
Ivermectin(1.55%)/Praziquantel(7.75%) Paste 3
Prednisone 3
Enrofloxacin 3
Hydromorphone 3
Flumethrin-Imidacloprid 3
Cefovecin Sodium 3
Selamectin;Sarolaner 3
Sanguinaria Canadensis 2
Cefpodoxime 2
Tramadol 2
Isoflurane 2
Cefazolin 2
Cephalexin 2

Nationwide reactions with similar profiles

Two openFDA-derived peer sets for Application site necrosis, 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 (7.7% 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 necrosis (#1513 of 2,481 by report volume); death-coded 7.7%. PlainBreed reaction plate · death-coded report count stamp 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 →