Reaction profile

The FDA adverse-event record for milk production decrease

321 FDA adverse-event reports reference milk production decrease (VeDDRA 535). See the species, breeds, and drugs most associated with it below.

321
reports citing this reaction
17.4%
death-coded share
Cattle
most-affected species
Monensin Sodium
most-associated drug
Verify with FDA CVM →
321
Total Reports
56
Deaths
17.4%
Death Rate

Species Most Affected

Cattle 298
Dog 13
Cat 4
Goat 2
Sheep 2
Horse 1
Pig 1

Breeds Most Affected

Holstein-Friesian also known as Holstein 200
Cattle (unknown) 34
Jersey 18
Crossbred Bovine/Cattle 15
Mixed (Cattle) 14
Cattle (other) 11
Bulldog - French 3
Bulldog 2
Domestic Shorthair 2
Siberian Husky 2

Associated Drugs

Monensin Sodium 196
Sometribove 76
Monensin 17
Ceftiofur 6
Sometribove Zinc Suspension 6
Eprinomectin 6
Moxidectin 5
Ampicillin Trihydrate 3
Fenbendazol Pellets 3
Dinoprost Tromethamine 2
Fenbendazole 2
Nitenpyram 2
Flunixin Meglumine 2
Oxytocin 2
Ceftiofur Crystalline Free Acid 2
Meloxicam 2
Cefovecin 2
Eprinomectin 5 Mg/Ml Pour-On Solution 2
Cephapirin Sodium 2
Fluralaner Chew Tablets 2

Milk production decrease Reaction Insights

321 reports name Milk production decrease; 56 recorded a death outcome (17.4% of reported events, not a population-level mortality rate). VeDDRA code: 535.

By species: Cattle (298 reports), Dog (13 reports), Cat (4 reports). By breed: Holstein-Friesian also known as Holstein (200), Cattle (unknown) (34), Jersey (18).

Most co-reported drugs: Monensin Sodium (196 reports), Sometribove (76 reports), Monensin (17 reports), Ceftiofur (6 reports).

Read these counts as reporting volume, not risk: per our methodology, co-reporting reflects temporal association captured in voluntary submissions, not proof that a drug caused this reaction. A widely-prescribed drug will rack up more raw co-reports at an identical true rate than a rarely-used one, so compare within similar-exposure products.

Source: FDA Center for Veterinary Medicine openFDA Animal & Veterinary Adverse Events (CVM AER) · 2025

Every figure on PlainBreed is rendered directly from FDA openFDA adverse event data, no number is typed in by an editor. This page draws directly on FDA openFDA data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.