Reaction profile

The FDA adverse-event record for heart failure

457 FDA adverse-event reports reference heart failure (VeDDRA 197). See the species, breeds, and drugs most associated with it below.

457
reports citing this reaction
59.1%
death-coded share
Dog
most-affected species
Milbemycin Oxime + Spinosad
most-associated drug
Verify with FDA CVM →
457
Total Reports
270
Deaths
59.1%
Death Rate

Species Most Affected

Dog 342
Cat 80
Cattle 27
Pig 3
Human 1
Goat 1
Chicken 1
Horse 1
Snake 1

Breeds Most Affected

Domestic Shorthair 33
Chihuahua 30
Crossbred Canine/dog 22
Dog (unknown) 22
Shih Tzu 16
Domestic (unspecified) 14
Terrier - Yorkshire 14
Retriever - Labrador 12
Boxer (German Boxer) 12
Dachshund (unspecified) 10

Associated Drugs

Milbemycin Oxime + Spinosad 98
Spinosad 37
Trilostane 26
Pimobendan 23
Furosemide 22
Moxidectin 22
Meloxicam 19
Oclacitinib Maleate 19
Carprofen 17
Monensin Sodium 17
Ivermectin + Pyrantel As Pamoate Salt 15
Cefovecin 15
Methylprednisolone Acetate 13
Bedinvetmab 12
Imidacloprid + Moxidectin 11
Doxycycline 11
Melarsomine Dihydrochloride 9
Isoflurane 9
Tylosin Phosphate 8
Ractopamine Hydrochloride 8

Heart failure Reaction Insights

457 reports name Heart failure; 270 recorded a death outcome (59.1% of reported events, not a population-level mortality rate). VeDDRA code: 197.

By species: Dog (342 reports), Cat (80 reports), Cattle (27 reports). By breed: Domestic Shorthair (33), Chihuahua (30), Crossbred Canine/dog (22).

Most co-reported drugs: Milbemycin Oxime + Spinosad (98 reports), Spinosad (37 reports), Trilostane (26 reports), Pimobendan (23 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.