Reaction profile

The FDA adverse-event record for low weight gain

165 FDA adverse-event reports reference low weight gain (VeDDRA 1048). Plate codes and volume neighbourhood below; species, breeds, and drugs follow.

#1138 of 2,481
by report volume (all reactions)
165
reports citing this reaction
19.4%
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. Low weight gain has 165 reports now versus 165 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 Low weight gain changes

FDA AER · VeDDRA plate

Code 1048 VOL-LOW

VOL-LOW · DEATH-ELEV · MID-PACK · PHOTO-FINISH · SPECIES-DOG · DRUG-LEAD · DESK-WIDE · BOOK-FULL

  • VOL-LOW 165 reports
  • DEATH-ELEV 19.4%
  • MID-PACK #1138/2481
  • PHOTO-FINISH Fainting
  • SPECIES-DOG Dog · 67
  • DRUG-LEAD Eprinomectin 5% I… · 24
  • DESK-WIDE 20 breeds
  • BOOK-FULL 8/8 fields

Nearest volume peer: Fainting (±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.

Report-volume neighbourhood around Low weight gain

Highest and lowest poles plus nearest volume peers, not a full 2,500-reaction corpus board reprint.

Vomiting · highest174348Fainting · near165Low weight gain · this react…165Neuropathy NOS · near165Scaly condition NOS · near165Bronchopneumonia · near163Urinary tract neoplas… · low…10
FDA AER report volume · neighbourhood around Low weight gain

What the FDA AER plate says about Low weight gain

Signature read: 32 death-coded reports is the most distinctive absolute-outcome stamp on Low weight gain. Report volume sits in the middle third of the reaction corpus. 32 of 165 reports were death-coded (19.4% of named reports, not a population mortality rate). Nearest volume peer: Fainting (±0 reports). Lead species Dog (67). Lead co-reported drug Eprinomectin 5% Injection (24).

Read these counts as reporting volume, not risk: per our methodology, Lead co-reported drug Eprinomectin 5% Injection 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 67
Cattle 66
Cat 13
Pig 8
Chicken 6
Bison 1
Turkey 1
Rabbit 1
Sheep 1
Horse 1

Breeds Most Affected

Aberdeen Angus 14
Cattle (other) 14
Cattle (unknown) 13
Retriever - Labrador 9
Shepherd Dog - German 8
Holstein-Friesian also known as Holstein 7
Retriever - Golden 6
Domestic Shorthair 5
Crossbred Bovine/Cattle 5
Greyhound 5

Associated Drugs

Eprinomectin 5% Injection 24
Monensin Sodium 22
Milbemycin Oxime + Spinosad 19
Milbemycin Oxime + Praziquantel 14
Moxidectin 8
Merial La Polypropylene Syringe 8
Ractopamine Hydrochloride 6
Praziquantel 5
Narasin 5
Ivermectin + Pyrantel As Pamoate Salt 5
Afoxolaner 4
Trenbolone; Estradiol; Tylosin Tartrate 3
Estradiol 3
Febantel + Praziquantel + Pyrantel Pamoate 3
Shampoo 3
Ivermectin 3
Milbemycin Oxime 3
Carprofen 3
Trenbolone Acetate;Estradiol Benzoate 3
Tylosin Phosphate 2

Nationwide reactions with similar profiles

Two openFDA-derived peer sets for Low weight gain, both floored at ≥50 reports so the neighborhoods stay in the advertised mass (the volume chart above is the unfloored photo-finish strip).

Similar report volume

Nearest other reactions by FDA report count (165 here).

Similar death-coded share

Nearest other reactions by death-coded share (19.4% 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 Low weight gain (#1138 of 2,481 by report volume); death-coded 19.4%. PlainBreed reaction plate · death-coded report count stamp 32 · 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 →