Reaction profile

The FDA adverse-event record for application site twitching

71 FDA adverse-event reports reference application site twitching (VeDDRA 2196). See the species, breeds, and drugs most associated with it below.

71
reports citing this reaction
1.4%
death-coded share
Cat
most-affected species
Imidacloprid + Moxidectin
most-associated drug
Verify with FDA CVM →
71
Total Reports
1
Deaths
1.4%
Death Rate

Species Most Affected

Cat 57
Dog 12
Human 2

Breeds Most Affected

Domestic Shorthair 27
Domestic Mediumhair 6
Domestic Longhair 6
Cat (unknown) 5
Pekingese 2
Siamese 2
Unknown 2
Crossbred Canine/dog 2
Bengal 2
Maine Coon 2

Associated Drugs

Imidacloprid + Moxidectin 20
Selamectin 11
Emodepside + Praziquantel 7
Fluralaner Spot-On Solution 7
Selamectin;Sarolaner 7
Fluralaner/Moxidectin Spot-On 5
Ivermectin + Pyrantel As Pamoate Salt 2
Chlorhexidine 2% + Ketoconazole 1% + Pytosphingosine (0.05%) 2
Cephalexin 2
Rabies Vaccine 2
Imidacloprid + Permethrin + Pyriproxyfen 2
Gabapentin 2
Eprinomectin + Praziquantel 2
Carprofen 2
Mirtazapine 2
Eprinomectin + Esafoxolaner + Praziquantel 2
Fipronil 9.8%/S-Methoprene 8.8%/Cyphenothrin 5.2% Squeeze-On 1
Maropitant Citrate 1
Famotidine 1
Liquid Dish Soap 1

Application site twitching Reaction Insights

71 reports name Application site twitching; 1 recorded a death outcome (1.4% of reported events, not a population-level mortality rate). VeDDRA code: 2196.

By species: Cat (57 reports), Dog (12 reports), Human (2 reports). By breed: Domestic Shorthair (27), Domestic Mediumhair (6), Domestic Longhair (6).

Most co-reported drugs: Imidacloprid + Moxidectin (20 reports), Selamectin (11 reports), Emodepside + Praziquantel (7 reports), Fluralaner Spot-On Solution (7 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.