Reaction profile

The FDA adverse-event record for nt - abnormal necropsy finding nos

1,268 FDA reports name nt - abnormal necropsy finding nos, a high-volume reaction in the CVM extract (VeDDRA 2142). Plate stamps and neighbourhood peers follow.

#323 of 2,481
by report volume (all reactions)
1,268
reports citing this reaction
99.4%
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. NT - Abnormal necropsy finding NOS has 1,268 reports now versus 1,268 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 NT - Abnormal necropsy finding NOS changes

FDA AER · VeDDRA plate

Code 2142 VOL-MID

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

  • VOL-MID 1,268 reports
  • DEATH-HOT 99.4%
  • UPPER-Q #323/2481
  • PHOTO-FINISH Application site infl…
  • SPECIES-DOG Dog · 674
  • DRUG-LEAD Milbemycin Oxime… · 236
  • DESK-WIDE 20 breeds
  • BOOK-FULL 8/8 fields

Nearest volume peer: Application site inflammation (±2 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 NT - Abnormal necropsy finding NOS

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

Vomiting · highest174348Application site infl… · near1270NT - Abnormal necrops… · thi…1268Stomach upset · near1266Incorrect route of dr… · near1264Respiratory distress · near1259Urinary tract neoplas… · low…10
FDA AER report volume · neighbourhood around NT - Abnormal necropsy finding NOS

NT - Abnormal necropsy finding NOS: high death-coded share in the FDA AER plate

Signature read: NT - Abnormal necropsy finding NOS's 99.4% death-coded share is among the highest in the openFDA reaction corpus. Report volume is upper-third scale: 1,268 named reports in the openFDA extract. Death-coded share is upper-third: 1,260 of 1,268 reports (99.4% of named reports). Nearest volume peer: Application site inflammation (±2 reports). Lead species Dog (674). Lead co-reported drug Milbemycin Oxime + Spinosad (236).

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 674
Cattle 307
Cat 148
Chicken 33
Pig 31
Horse 25
Turkey 13
Sheep 10
Goat 8
Other Birds 3

Breeds Most Affected

Domestic Shorthair 99
Retriever - Labrador 84
Holstein-Friesian also known as Holstein 77
Cattle (other) 71
Cattle (unknown) 54
Shepherd Dog - German 43
Crossbred Canine/dog 40
Aberdeen Angus 27
Mixed (Cattle) 27
Pig (unknown) 26

Associated Drugs

Milbemycin Oxime + Spinosad 236
Monensin Sodium 155
Spinosad 132
Fluralaner Chew Tablets 105
Deracoxib 54
Tulathromycin 45
Afoxolaner 45
Rabies Vaccine 35
Robenacoxib 34
Ceftiofur Crystalline Free Acid 33
Carprofen 32
Bovine Respiratory Syncytial Virus, 597-10 10Th Psg Strain 375; Bovine Viral Dia 26
Ivermectin + Pyrantel As Pamoate Salt 25
Moxidectin 24
Isoflurane 24
Milbemycin Oxime + Praziquantel 24
Ivermectin 23
Tramadol 23
Bovine Parainfluenza Virus 3 (Ts), Rlb103 (Nl-Bk-6), Mlv; Bovine Respiratory Syn 23
Grapiprant 23

Nationwide reactions with similar profiles

Two openFDA-derived peer sets for NT - Abnormal necropsy finding NOS, 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 (99.4% 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 NT - Abnormal necropsy finding NOS (#323 of 2,481 by report volume); death-coded 99.4%. PlainBreed reaction plate · death-coded share stamp 99.4% · 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 →