Reaction profile

The FDA adverse-event record for displaced abomasum

Name: Displaced abomasum - FDA Animal Adverse Reaction
Creator: PlainBreed
License: https://open.fda.gov/license/

33 FDA reports name displaced abomasum, a lower-volume reaction in the CVM extract (VeDDRA 323). Plate stamps and neighbourhood peers follow.

#1937 of 2,481
by report volume (all reactions): 33
reports citing this reaction: 57.6%
death-coded share: Cattle
most-affected species

Compiled by PlainBreed

Verify with FDA CVM →

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. Displaced abomasum has 33 reports now versus 32 in that prior snapshot: 1 more (3.1%).

Report change: +1
Death-coded reports: +0
Death-coded share: −1.8 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 Displaced abomasum changes

FDA AER · VeDDRA plate

Code 323 VOL-TRACE

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

VOL-TRACE 33 reports
DEATH-HOT 57.6%
LOWER-Q #1937/2481
PHOTO-FINISH Abnormal dexamethason…
SPECIES-CATTLE Cattle · 33
DRUG-LEAD Monensin Sodium · 17
DESK-MID 5 breeds
BOOK-FULL 8/8 fields

Nearest volume peer: Abnormal dexamethasone suppression test (±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 Displaced abomasum

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

FDA AER report volume · neighbourhood around Displaced abomasum

Displaced abomasum: high death-coded share in the FDA AER plate

Signature read: Displaced abomasum's 57.6% death-coded share is among the highest in the openFDA reaction corpus. Report volume is lower-third scale: 33 named reports in the openFDA extract. Death-coded share is upper-third: 19 of 33 reports (57.6% of named reports). Nearest volume peer: Abnormal dexamethasone suppression test (±0 reports). Lead species Cattle (33). Lead co-reported drug Monensin Sodium (17).

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

Cattle 33

Breeds Most Affected

Holstein-Friesian also known as Holstein 22

Cattle (unknown) 5

Cattle (other) 4

Crossbred Bovine/Cattle 1

Jersey 1

Associated Drugs

Monensin Sodium 17

Pegbovigrastim 9

Monensin 4

Moxidectin 1

Sometribove Zinc Suspension 1

Ceftiofur 1

Ceftiofur Crystalline Free Acid 1

Sometribove 1

Ceftiofur Hydrochloride 1

Calcium 1

Ampicillin Trihydrate 1

Magnesium Oxide 1

What to do with this reaction

Read how death-coded share differs from a mortality rate before drawing conclusions. Understanding adverse events
Browse the full reaction directory to compare report counts across reaction types. All reactions

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 Displaced abomasum (#1937 of 2,481 by report volume); death-coded 57.6%. PlainBreed reaction plate · death-coded share stamp 57.6% · 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 →