Reaction profile

The FDA adverse-event record for mammary gland oedema

113 FDA adverse-event reports reference mammary gland oedema (VeDDRA 528). See the species, breeds, and drugs most associated with it below.

113
reports citing this reaction
10.6%
death-coded share
Cattle
most-affected species
Sometribove
most-associated drug
Verify with FDA CVM →
113
Total Reports
12
Deaths
10.6%
Death Rate

Species Most Affected

Cattle 50
Dog 40
Horse 18
Cat 3
Other 1
Goat 1

Breeds Most Affected

Holstein-Friesian also known as Holstein 26
Cattle (unknown) 8
Crossbred Bovine/Cattle 7
Quarter Horse 6
Dog (unknown) 5
Terrier - Yorkshire 4
Retriever - Labrador 3
Jersey 3
Crossbred Canine/dog 3
Horse (unknown) 3

Associated Drugs

Sometribove 12
Cephapirin Benzathine 11
Estradiol 10
Estriol Tablets 10
Altrenogest Oily Solution 10
Monensin Sodium 8
Oclacitinib Maleate 4
Estradiol, Testosterone 3
Cloxacillin Benzathine 3
Carprofen 3
Pergolide Mesylate 3
Cloxacillin Benz Intramam Dc 3
Cephapirin Sodium 2
Milbemycin, Lufenuron 2
Estradiol Benzoate, Progesterone 2
Zeranol Implant 2
Eprinomectin 5 Mg/Ml Pour-On Solution 2
Selamectin 2
Bismuth Subnitr Intramammary 2
Fluralaner 13.64% 12-Week Chew 2

Mammary gland oedema Reaction Insights

113 reports name Mammary gland oedema; 12 recorded a death outcome (10.6% of reported events, not a population-level mortality rate). VeDDRA code: 528.

By species: Cattle (50 reports), Dog (40 reports), Horse (18 reports). By breed: Holstein-Friesian also known as Holstein (26), Cattle (unknown) (8), Crossbred Bovine/Cattle (7).

Most co-reported drugs: Sometribove (12 reports), Cephapirin Benzathine (11 reports), Estradiol (10 reports), Estriol Tablets (10 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.