Reaction profile

The FDA adverse-event record for ineffective, grubs

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

24 FDA reports name ineffective, grubs, a lower-volume reaction in the CVM extract (VeDDRA 99111). Plate stamps and neighbourhood peers follow.

#2084 of 2,481
by report volume (all reactions): 24
reports citing this reaction: 4.2%
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. INEFFECTIVE, GRUBS has 24 reports now versus 24 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 INEFFECTIVE, GRUBS changes

FDA AER · VeDDRA plate

Code 99111 VOL-TRACE

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

VOL-TRACE 24 reports
DEATH-LOW 4.2%
LOWER-Q #2084/2481
PHOTO-FINISH Acute pancreatitis
SPECIES-CATTLE Cattle · 24
DRUG-LEAD Ivermectin · 9
DESK-MID 7 breeds
BOOK-FULL 8/8 fields

Nearest volume peer: Acute pancreatitis (±0 reports)

Instrument codes from this reaction’s FDA CVM adverse-event extract: volume band, death-coded share, corpus rank, photo-finish peer, lead species, lead drug, breed desk, and book completeness. Not a clinical diagnosis.

Lower-volume neighbourhood around INEFFECTIVE, GRUBS

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

FDA AER report volume · neighbourhood around INEFFECTIVE, GRUBS

INEFFECTIVE, GRUBS: low death-coded share in the FDA AER plate

Signature read: 1 death-coded reports is a thin tail count for INEFFECTIVE, GRUBS in the CVM extract. Report volume is lower-third scale: 24 named reports in the openFDA extract. Death-coded share is lower-third: 1 of 24 reports (4.2% of named reports). Nearest volume peer: Acute pancreatitis (±0 reports). Lead species Cattle (24). Lead co-reported drug Ivermectin (9).

Read these counts as reporting volume, not risk: per our methodology, Lead co-reported drug Ivermectin 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

Cattle 24

Breeds Most Affected

Cattle (unknown) 5

Crossbred Bovine/Cattle 5

Cattle (other) 4

Nelore 4

Mixed (Cattle) 3

Aberdeen Angus 2

Hereford cattle 1

Associated Drugs

Ivermectin 9

Moxidectin 6

Ivermectin 10 Mg/Ml Solution For Injection 4

Doramectin 2

Eprinomectin 1

Clorsulon, Ivermectin 1

Doramectin; Phenol 1

Permethrin, Diflubenzuron 1

Diflubenzuron + Permethrin 1

Fenbendazole 1

Permethrin + Piperonyl Butoxide 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 INEFFECTIVE, GRUBS (#2084 of 2,481 by report volume); death-coded 4.2%. PlainBreed reaction plate · death-coded report count stamp 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 →