Reaction profile

The FDA adverse-event record for diarrhoea

64,292 FDA reports name diarrhoea, a high-volume reaction in the CVM extract (VeDDRA 302). Plate stamps and neighbourhood peers follow.

#4 of 2,481
by report volume (all reactions)
64,292
reports citing this reaction
6.5%
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. Diarrhoea has 64,292 reports now versus 63,419 in that prior snapshot: 873 more (1.4%).

Report change
+873
Death-coded reports
+58
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 Diarrhoea changes

FDA AER · VeDDRA plate

Code 302 VOL-MEGA

VOL-MEGA · DEATH-PAR · TOP-DECILE · NEAR-PEER · SPECIES-DOG · DRUG-LEAD · DESK-WIDE · BOOK-FULL

  • VOL-MEGA 64,292 reports
  • DEATH-PAR 6.5%
  • TOP-DECILE #4/2481
  • NEAR-PEER Emesis
  • SPECIES-DOG Dog · 57,262
  • DRUG-LEAD Milbemycin Oxime… · 6,955
  • DESK-WIDE 20 breeds
  • BOOK-FULL 8/8 fields

Nearest volume peer: Emesis (±5,025 reports)

Upper-third report volume drives the scale stamps on this plate; death-coded share and co-report peers follow. Not a clinical diagnosis.

High-volume neighbourhood around Diarrhoea

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

Vomiting · highest174348Emesis · near69317Diarrhoea · this reaction64292Lack of efficacy (ect… · near59231Lack of efficacy - NOS · near54525Lack of efficacy (end… · near52770Urinary tract neoplas… · low…10
FDA AER report volume · neighbourhood around Diarrhoea

Diarrhoea: low death-coded share in the FDA AER plate

Signature read: 64,292 reports place Diarrhoea in the upper third of FDA AER volume (#4 of 2,481). Report volume is upper-third scale: 64,292 named reports in the openFDA extract. Death-coded share is lower-third: 4,150 of 64,292 reports (6.5% of named reports). Nearest volume peer: Emesis (±5,025 reports). Lead species Dog (57,262). Lead co-reported drug Milbemycin Oxime + Spinosad (6,955).

Read these counts as reporting volume, not risk: per our methodology, Lead co-reported drug Milbemycin Oxime + Spinosad appears in filings alongside this reaction; that is association, not causation. Browse the full reactions index or the about page for how PlainBreed frames FDA CVM extracts.

Species Most Affected

Dog 57,262
Cat 5,769
Horse 422
Cattle 413
Human 258
Pig 49
Goat 32
Sheep 14
Unknown 12
Ferret 11

Breeds Most Affected

Retriever - Labrador 5,730
Crossbred Canine/dog 4,272
Domestic Shorthair 3,135
Retriever - Golden 3,044
Shepherd Dog - German 2,387
Terrier - Yorkshire 2,341
Dog (unknown) 2,316
Chihuahua 2,203
Shih Tzu 1,975
Maltese 1,225

Associated Drugs

Milbemycin Oxime + Spinosad 6,955
Afoxolaner 4,787
Ivermectin + Pyrantel As Pamoate Salt 4,404
Pyrantel Pamoate;Sarolaner 3,832
Carprofen 2,781
Moxidectin 2,643
Fluralaner Chew Tablets 2,599
Milbemycin Oxime + Praziquantel 2,492
Oclacitinib Maleate 2,247
Spinosad 2,073
Trilostane 1,928
Maropitant Citrate 1,881
Bedinvetmab 1,456
Sarolaner 1,342
Fluralaner 13.64% 12-Week Chew 1,317
Grapiprant 1,280
Selamectin 1,268
Lotilaner 1,258
Gabapentin 1,158
Cyclosporine 1,090

Nationwide reactions with similar profiles

Two openFDA-derived peer sets for Diarrhoea, 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 (6.5% 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 Diarrhoea (#4 of 2,481 by report volume); death-coded 6.5%. PlainBreed reaction plate · report volume stamp 64,292 · 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 →