Reaction profile

The FDA adverse-event record for lip oedema (see also 'skin')

413 FDA adverse-event reports reference lip oedema (see also 'skin') (VeDDRA 1577). See the species, breeds, and drugs most associated with it below.

413
reports citing this reaction
2.7%
death-coded share
Horse
most-affected species
Ivermectin, Praziquantel
most-associated drug
Verify with FDA CVM →
413
Total Reports
11
Deaths
2.7%
Death Rate

Species Most Affected

Horse 263
Dog 117
Human 15
Cat 13
Cattle 2
Donkey 2
Other 1

Breeds Most Affected

Horse (unknown) 89
Thoroughbred 36
Quarter Horse 36
Arab 20
Crossbred Equine/horse 19
Unknown 17
Retriever - Labrador 15
Crossbred Canine/dog 13
Mixed (Horse) 11
Horse (other) 9

Associated Drugs

Ivermectin, Praziquantel 199
Ivermectin(1.55%)/Praziquantel(7.75%) Paste 28
Moxidectin 15
Ivermectin 11
Ivermectin/Praziquantel Paste 11
Ivermectin + Praziquantel 11
Afoxolaner 9
Carprofen 8
Fluralaner Chew Tablets 7
Meloxicam 6
Milbemycin Oxime + Spinosad 6
Propofol 5
Maropitant Citrate 5
Cefovecin Sodium 4
Melarsomine Dihydrochloride 4
Imidacloprid + Moxidectin 4
Lufenuron + Milbemycin Oxime 4
Rabies Virus, Kv 4
Oclacitinib Maleate 4
Ivermectin + Pyrantel As Pamoate Salt 4

Lip oedema (see also 'Skin') Reaction Insights

413 reports name Lip oedema (see also 'Skin'); 11 recorded a death outcome (2.7% of reported events, not a population-level mortality rate). VeDDRA code: 1577.

By species: Horse (263 reports), Dog (117 reports), Human (15 reports). By breed: Horse (unknown) (89), Thoroughbred (36), Quarter Horse (36).

Most co-reported drugs: Ivermectin, Praziquantel (199 reports), Ivermectin(1.55%)/Praziquantel(7.75%) Paste (28 reports), Moxidectin (15 reports), Ivermectin (11 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.