Reaction profile

The FDA adverse-event record for bone marrow aplasia

22 FDA reports name bone marrow aplasia, a lower-volume reaction in the CVM extract (VeDDRA 149). Plate stamps and neighbourhood peers follow.

#2123 of 2,481
by report volume (all reactions)
22
reports citing this reaction
59.1%
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. Bone marrow aplasia has 22 reports now versus 22 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 Bone marrow aplasia changes

FDA AER · VeDDRA plate

Code 149 VOL-TRACE

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

  • VOL-TRACE 22 reports
  • DEATH-HOT 59.1%
  • LOWER-Q #2123/2481
  • PHOTO-FINISH Adenocarcinoma NOS
  • SPECIES-DOG Dog · 17
  • DRUG-LEAD Cyclosporine · 3
  • DESK-WIDE 15 breeds
  • BOOK-FULL 8/8 fields

Nearest volume peer: Adenocarcinoma NOS (±0 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.

Lower-volume neighbourhood around Bone marrow aplasia

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

Vomiting · highest174348Adenocarcinoma NOS · near22Bolus, Abnormal · near22Bone marrow aplasia · this r…22CEREBROSPINAL FLUID A… · near22Founder · near22Urinary tract neoplas… · low…10
FDA AER report volume · neighbourhood around Bone marrow aplasia

Bone marrow aplasia: high death-coded share in the FDA AER plate

Signature read: Bone marrow aplasia's 59.1% death-coded share is among the highest in the openFDA reaction corpus. Report volume is lower-third scale: 22 named reports in the openFDA extract. Death-coded share is upper-third: 13 of 22 reports (59.1% of named reports). Nearest volume peer: Adenocarcinoma NOS (±0 reports). Lead species Dog (17). Lead co-reported drug Cyclosporine (3).

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 17
Cat 4
Cattle 1

Breeds Most Affected

Crossbred Canine/dog 6
Domestic (unspecified) 2
Domestic Shorthair 2
Shepherd Dog - Australian 1
Terrier - West Highland White 1
Holstein-Friesian also known as Holstein 1
Terrier - Yorkshire 1
Schnauzer (unspecified) 1
Terrier - Fox (unspecified) 1
Rottweiler 1

Associated Drugs

Cyclosporine 3
Estriol Tablets 3
Fenbendazole 2
Moxidectin 2
Carprofen 2
Estriol 2
Prednisone 2
Canine Adenovirus Type 2, Strain Manhattan, 12-13-76; Canine Distemper Virus, St 2
Milbemycin 1
Cefovecin Sodium 1
Selamectin 1
Dirlotapide 1
Spinosad 1
Marbofloxacin 1
Cefovecin 1
Plasma 1
Doxycycline 1
Diazepam 1
Phenobarbital 1
Maropitant Citrate 1

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 Bone marrow aplasia (#2123 of 2,481 by report volume); death-coded 59.1%. PlainBreed reaction plate · death-coded share stamp 59.1% · 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 →