Reaction profile

The FDA adverse-event record for skin lump

1,178 FDA adverse-event reports reference skin lump (VeDDRA 1191). See the species, breeds, and drugs most associated with it below.

1,178
reports citing this reaction
10.3%
death-coded share
Dog
most-affected species
Oclacitinib Maleate
most-associated drug
Verify with FDA CVM →
1,178
Total Reports
121
Deaths
10.3%
Death Rate

Species Most Affected

Dog 1,057
Cat 96
Horse 10
Human 7
Cattle 4
Pig 1
Rabbit 1
Tiger 1
Goat 1

Breeds Most Affected

Retriever - Labrador 118
Crossbred Canine/dog 75
Retriever - Golden 52
Boxer (German Boxer) 51
Domestic Shorthair 50
Shepherd Dog - German 45
Chihuahua 41
Shih Tzu 36
Dog (unknown) 35
Terrier - Bull - American Pit 29

Associated Drugs

Oclacitinib Maleate 327
Milbemycin Oxime + Spinosad 95
Carprofen 66
Anti-Il31 Mab Mcs Lot #1283563 50
Afoxolaner 47
Milbemycin Oxime + Praziquantel 47
Moxidectin 46
Fluralaner Chew Tablets 43
Bedinvetmab 43
Maropitant Citrate 41
Melarsomine Dihydrochloride 38
Prednisone 32
Cefovecin 31
Selamectin 30
Spinosad 27
Gabapentin 26
Ivermectin + Pyrantel As Pamoate Salt 26
Cyclosporine A 25
Cyclosporine 22
Trilostane 21

Skin lump Reaction Insights

1,178 reports name Skin lump; 121 recorded a death outcome (10.3% of reported events, not a population-level mortality rate). VeDDRA code: 1191.

By species: Dog (1,057 reports), Cat (96 reports), Horse (10 reports). By breed: Retriever - Labrador (118), Crossbred Canine/dog (75), Retriever - Golden (52).

Most co-reported drugs: Oclacitinib Maleate (327 reports), Milbemycin Oxime + Spinosad (95 reports), Carprofen (66 reports), Anti-Il31 Mab Mcs Lot #1283563 (50 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.