Reaction profile

The FDA adverse-event record for scour

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

40 FDA reports name scour, a lower-volume reaction in the CVM extract (VeDDRA 303). Plate stamps and neighbourhood peers follow.

#1852 of 2,481
by report volume (all reactions): 40
reports citing this reaction: 55.0%
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. Scour has 40 reports now versus 40 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 Scour changes

FDA AER · VeDDRA plate

Code 303 VOL-TRACE

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

VOL-TRACE 40 reports
DEATH-HOT 55.0%
MID-PACK #1852/2481
PHOTO-FINISH Acute (interstitial)…
SPECIES-CATTLE Cattle · 33
DRUG-LEAD Monensin Sodium · 12
DESK-WIDE 10 breeds
BOOK-FULL 8/8 fields

Nearest volume peer: Acute (interstitial) pneumonia/pleuropneumonia (±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 Scour

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

FDA AER report volume · neighbourhood around Scour

Scour: high death-coded share in the FDA AER plate

Signature read: Scour's 55.0% death-coded share is among the highest in the openFDA reaction corpus. Report volume is lower-third scale: 40 named reports in the openFDA extract. Death-coded share is upper-third: 22 of 40 reports (55.0% of named reports). Nearest volume peer: Acute (interstitial) pneumonia/pleuropneumonia (±0 reports). Lead species Cattle (33). Lead co-reported drug Monensin Sodium (12).

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

Pig 4

Horse 2

Dog 1

Breeds Most Affected

Holstein-Friesian also known as Holstein 9

Cattle (unknown) 8

Cattle (other) 6

Aberdeen Angus 5

Pig (unknown) 4

Jersey 3

Crossbred Bovine/Cattle 2

Shepherd Dog - German 1

Quarter Horse 1

Horse (unknown) 1

Associated Drugs

Monensin Sodium 12

Tulathromycin 5

Bovine Parainfluenza Virus 3 (Ts), Rlb103 (Nl-Bk-6), Mlv; Bovine Respiratory Syn 5

Tildipirosin Injectable 4

Ractopamine Hydrochloride 3

Ivermectin(1%)/Clorsulon(10%) Injection 3

Bovine Parainfluenza Virus 3, Reisinger(Nl-Bk-6), Mlv; Bovine Respiratory Syncyt 2

Moxidectin 2

Bovine Viral Diarrhea Virus, Type 2, Strain 53637, Lot Bvd2Mlv-D; Bovine Viral D 2

Ivermectin 0.5% Pour-On Topical Solution 2

Avilamycin 2

Doramectin 2

Vitamin E & Selenium 1

30Mg Pyrantel Pamoate/ 30Mg Praziquantel 1

Lasalocid 1

Florfenicol/Flunixin Inj-Triac 1

Doramectin; Phenol 1

Narasin 1

Bovine Rhinotracheitis-Virus Diarrhea-Parainfluenza 3-Respiratory Syncytial Virus Vaccine, Killed Virus 1

Moraxella Bovis Bacterin 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 Scour (#1852 of 2,481 by report volume); death-coded 55.0%. PlainBreed reaction plate · death-coded share stamp 55.0% · 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 →