Reaction profile

The FDA adverse-event record for spleen and reticulo-endothelial system disorder nos

399 FDA reports name spleen and reticulo-endothelial system disorder nos, a high-volume reaction in the CVM extract (VeDDRA 182). Plate stamps and neighbourhood peers follow.

#728 of 2,481
by report volume (all reactions)
399
reports citing this reaction
50.6%
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. Spleen and reticulo-endothelial system disorder NOS has 399 reports now versus 398 in that prior snapshot: 1 more (0.3%).

Report change
+1
Death-coded reports
+1
Death-coded share
+0.1 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 Spleen and reticulo-endothelial system disorder NOS changes

FDA AER · VeDDRA plate

Code 182 VOL-LOW

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

  • VOL-LOW 399 reports
  • DEATH-HOT 50.6%
  • MID-PACK #728/2481
  • PHOTO-FINISH INEFFECTIVE, OTHER DR…
  • SPECIES-DOG Dog · 361
  • DRUG-LEAD Trilostane · 60
  • DESK-WIDE 20 breeds
  • BOOK-FULL 8/8 fields

Nearest volume peer: INEFFECTIVE, OTHER DRUG(S) (±1 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 Spleen and reticulo-endothelial system

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

Vomiting · highest174348Increased red blood c… · near401Skin warmth · near400Spleen and reticulo-e… · thi…399INEFFECTIVE, OTHER DR… · near398Elevated protein:crea… · near397Urinary tract neoplas… · low…10
FDA AER report volume · neighbourhood around Spleen and reticulo-endothelial system disorder NOS

Spleen and reticulo-endothelial system disorder NOS: high death-coded share in the FDA AER plate

Signature read: 202 death-coded reports is a heavy tail count for Spleen and reticulo-endothelial system disorder NOS in the CVM extract. Report volume is upper-third scale: 399 named reports in the openFDA extract. Death-coded share is upper-third: 202 of 399 reports (50.6% of named reports). Nearest volume peer: INEFFECTIVE, OTHER DRUG(S) (±1 reports). Lead species Dog (361). Lead co-reported drug Trilostane (60).

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 361
Cat 30
Cattle 4
Chicken 1
Horse 1
Goat 1
Mouse 1

Breeds Most Affected

Retriever - Labrador 60
Domestic Shorthair 25
Beagle 21
Retriever - Golden 21
Crossbred Canine/dog 20
Shepherd Dog - German 16
Boxer (German Boxer) 15
Shepherd Dog - Australian 13
Shih Tzu 11
Dachshund (unspecified) 9

Associated Drugs

Trilostane 60
Carprofen 55
Milbemycin Oxime + Spinosad 49
Spinosad 32
Maropitant Citrate 25
Afoxolaner 25
Grapiprant 20
Deracoxib 19
Fluralaner Chew Tablets 19
Gabapentin 19
Polysulfated Glycosaminoglycan 18
Prednisone 17
Tramadol 15
Oclacitinib Maleate 15
Ivermectin + Pyrantel As Pamoate Salt 12
Meloxicam 11
Enrofloxacin 10
Moxidectin 10
Firocoxib 10
Cyclosporine 10

Nationwide reactions with similar profiles

Two openFDA-derived peer sets for Spleen and reticulo-endothelial system disorder 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 (50.6% 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 Spleen and reticulo-endothelial system disorder NOS (#728 of 2,481 by report volume); death-coded 50.6%. PlainBreed reaction plate · death-coded report count stamp 202 · 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 →