Reaction profile

The FDA adverse-event record for appetite loss

3,152 FDA adverse-event reports reference appetite loss (VeDDRA 997). See the species, breeds, and drugs most associated with it below.

3,152
reports citing this reaction
10.7%
death-coded share
Dog
most-affected species
Milbemycin Oxime + Spinosad
most-associated drug
Verify with FDA CVM →
3,152
Total Reports
338
Deaths
10.7%
Death Rate

Species Most Affected

Dog 2,722
Cat 375
Horse 25
Cattle 15
Human 6
Pig 4
Rabbit 1
Chicken 1
Other Equids 1
Goat 1

Breeds Most Affected

Retriever - Labrador 257
Crossbred Canine/dog 221
Domestic Shorthair 190
Retriever - Golden 131
Chihuahua 129
Terrier - Yorkshire 119
Shepherd Dog - German 119
Dog (unknown) 113
Boxer (German Boxer) 83
Shih Tzu 80

Associated Drugs

Milbemycin Oxime + Spinosad 569
Afoxolaner 524
Ivermectin + Pyrantel As Pamoate Salt 217
Carprofen 182
Spinosad 122
Pyrantel Pamoate;Sarolaner 114
Bedinvetmab 95
Fluralaner 13.64% 12-Week Chew 92
Fluralaner Chew Tablets 80
Maropitant Citrate 74
Trilostane 70
Gabapentin 69
Milbemycin Oxime + Praziquantel 69
Grapiprant 69
Insulin Injectable Vial 51
Nitenpyram 49
Polysulfated Glycosaminoglycan 48
Sarolaner 48
Oclacitinib Maleate 46
Prednisone 44

Appetite loss Reaction Insights

3,152 reports name Appetite loss; 338 recorded a death outcome (10.7% of reported events, not a population-level mortality rate). VeDDRA code: 997.

By species: Dog (2,722 reports), Cat (375 reports), Horse (25 reports). By breed: Retriever - Labrador (257), Crossbred Canine/dog (221), Domestic Shorthair (190).

Most co-reported drugs: Milbemycin Oxime + Spinosad (569 reports), Afoxolaner (524 reports), Ivermectin + Pyrantel As Pamoate Salt (217 reports), Carprofen (182 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.