Reaction profile

The FDA adverse-event record for nt - hypertrophic concentric cardiomyopathy

24 FDA adverse-event reports reference nt - hypertrophic concentric cardiomyopathy (VeDDRA 2301). See the species, breeds, and drugs most associated with it below.

24
reports citing this reaction
91.7%
death-coded share
Cat
most-affected species
Spinosad
most-associated drug
Verify with FDA CVM →
24
Total Reports
22
Deaths
91.7%
Death Rate

Species Most Affected

Cat 14
Dog 10

Breeds Most Affected

Domestic Shorthair 10
Domestic Longhair 2
American Shorthair 1
Doberman Pinscher 1
Pug 1
Japanese Chin (Spaniel) 1
Basenji 1
Boxer (German Boxer) 1
Beagle 1
Poodle - Toy 1

Associated Drugs

Spinosad 5
Afoxolaner 3
Fluralaner Spot-On Solution 3
Maropitant Citrate 2
Cefovecin 2
Furosemide 2
Lotilaner 2
Fluralaner/Moxidectin Spot-On 2
Selamectin;Sarolaner 2
Methylprednisolone Acetate 1
Epinephrine 1
Famotidine 1
Atropine 1
Albuterol 1
Dexamethasone Sodium Phosphate 1
Methylprednisone Acetate 1
Propofol 1
Prescription Veterinary Diet 1
Milbemycin Oxime, Lufenuron 1
Melarsomine Dihydrochloride Injection 1

NT - hypertrophic concentric cardiomyopathy Reaction Insights

24 reports name NT - hypertrophic concentric cardiomyopathy; 22 recorded a death outcome (91.7% of reported events, not a population-level mortality rate). VeDDRA code: 2301.

By species: Cat (14 reports), Dog (10 reports). By breed: Domestic Shorthair (10), Domestic Longhair (2), American Shorthair (1).

Most co-reported drugs: Spinosad (5 reports), Afoxolaner (3 reports), Fluralaner Spot-On Solution (3 reports), Maropitant Citrate (2 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.