Reaction profile

The FDA adverse-event record for gingival hyperplasia

486 FDA adverse-event reports reference gingival hyperplasia (VeDDRA 1886). See the species, breeds, and drugs most associated with it below.

486
reports citing this reaction
3.1%
death-coded share
Dog
most-affected species
Cyclosporine
most-associated drug
Verify with FDA CVM →
486
Total Reports
15
Deaths
3.1%
Death Rate

Species Most Affected

Dog 448
Cat 38

Breeds Most Affected

Terrier - West Highland White 57
Retriever - Golden 56
Retriever - Labrador 40
Boxer (German Boxer) 28
Shih Tzu 23
Crossbred Canine/dog 22
Shepherd Dog - German 21
Domestic Shorthair 20
Pit Bull 10
Cat (unknown) 9

Associated Drugs

Cyclosporine 275
Cyclosporine A 201
Oclacitinib Maleate 67
Ketoconazole 55
Milbemycin Oxime + Spinosad 24
Prednisone 22
Anti-Il31 Mab Mcs Lot #1283563 9
Hydroxyzine 8
Cetirizine 7
Ivermectin 7
Spinosad 7
Polysulfated Glycosaminoglycan 6
Carprofen 6
Tacrolimus 6
Milbemycin Oxime + Praziquantel 6
Immunotherapy 5
Fish Oil 5
Maropitant Citrate 5
Deracoxib 4
Cefpodoxime Proxetil 4

Gingival hyperplasia Reaction Insights

486 reports name Gingival hyperplasia; 15 recorded a death outcome (3.1% of reported events, not a population-level mortality rate). VeDDRA code: 1886.

By species: Dog (448 reports), Cat (38 reports). By breed: Terrier - West Highland White (57), Retriever - Golden (56), Retriever - Labrador (40).

Most co-reported drugs: Cyclosporine (275 reports), Cyclosporine A (201 reports), Oclacitinib Maleate (67 reports), Ketoconazole (55 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.