Reaction profile

The FDA adverse-event record for supraventricular and nodal arrhythmia

Name: Supraventricular and nodal arrhythmia - FDA Animal Adverse Reaction
Creator: PlainBreed
License: https://open.fda.gov/license/

13 FDA reports name supraventricular and nodal arrhythmia, a lower-volume reaction in the CVM extract (VeDDRA 2221). Plate stamps and neighbourhood peers follow.

#2372 of 2,481
by report volume (all reactions): 13
reports citing this reaction: 23.1%
death-coded share: Dog
most-affected species

Compiled by PlainBreed

Verify with FDA CVM →

Release-over-release change

What changed in the latest FDA data snapshot

PlainBreed reconstructed the prior snapshot from dated openFDA partitions through 2025 Q4, then compared it with the 2026-07-27 openFDA export. Supraventricular and nodal arrhythmia has 13 reports now versus 12 in that prior snapshot: 1 more (8.3%).

Report change: +1
Death-coded reports: +0
Death-coded share: −1.9 pts

This compares reported-event counts in two source snapshots. It does not establish a change in real-world risk, product safety, or disease incidence.

Subscribe to Supraventricular and nodal arrhythmia changes

FDA AER · VeDDRA plate

Code 2221 VOL-TRACE

VOL-TRACE · DEATH-HOT · BOTTOM-DECILE · PHOTO-FINISH · SPECIES-DOG · DRUG-LEAD · DESK-WIDE · BOOK-FULL

VOL-TRACE 13 reports
DEATH-HOT 23.1%
BOTTOM-DECILE #2372/2481
PHOTO-FINISH Abnormal digital pulse
SPECIES-DOG Dog · 12
DRUG-LEAD Pimobendan · 3
DESK-WIDE 11 breeds
BOOK-FULL 8/8 fields

Nearest volume peer: Abnormal digital pulse (±0 reports)

Instrument codes from this reaction’s FDA CVM adverse-event extract: volume band, death-coded share, corpus rank, photo-finish peer, lead species, lead drug, breed desk, and book completeness. Not a clinical diagnosis.

Lower-volume neighbourhood around Supraventricular and nodal arrhythmia

Lower-third volume poles plus nearest peers, not a full reaction corpus board reprint.

FDA AER report volume · neighbourhood around Supraventricular and nodal arrhythmia

What the FDA AER plate says about Supraventricular and nodal arrhythmia

Signature read: 13 reports place Supraventricular and nodal arrhythmia in the lower third of FDA AER volume (#2372 of 2,481). Report volume is lower-third scale: 13 named reports in the openFDA extract. 3 of 13 reports were death-coded (23.1% of named reports, not a population mortality rate). Nearest volume peer: Abnormal digital pulse (±0 reports). Lead species Dog (12). Lead co-reported drug Pimobendan (3).

Read these counts as reporting volume, not risk: per our methodology, Lead co-reported drug Pimobendan appears in filings alongside this reaction; that is association, not causation. Browse the full reactions index or the about page for how PlainBreed frames FDA CVM extracts.

Species Most Affected

Dog 12

Cat 1

Breeds Most Affected

Chihuahua 2

Retriever - Labrador 2

Persian 1

Cattle Dog - Flanders (Bouvier) 1

Dalmatian 1

Schnauzer - Miniature 1

Terrier - Airedale 1

Pointing Dog - Hungarian Short-haired (Vizsla) 1

Collie - Border 1

Boxer (German Boxer) 1

Associated Drugs

Pimobendan 3

Carprofen 3

Spinosad 2

Alfaxalone 2

Butorphanol 2

Acepromazine 2

Ampicillin Trihydrate 1

Dexamethasone Sp 1

Vitamin B 1

Clindamycin Injection 1

Recombinant Human Insulin 1

Furosemide 1

Benazepril 1

Firocoxib 1

Fluralaner Chew Tablets 1

Isoflurane 1

Atropine 1

Oclacitinib Maleate 1

Diltiazem 1

Grapiprant 1

What to do with this reaction

Read how death-coded share differs from a mortality rate before drawing conclusions. Understanding adverse events
Browse the full reaction directory to compare report counts across reaction types. All reactions

A report does not prove a drug caused the reaction; consult a veterinarian before acting on this data.

Source: FDA Center for Veterinary Medicine openFDA Animal & Veterinary Adverse Events (CVM AER) · 2025

openFDA Animal & Veterinary Adverse Events (FDA CVM) for Supraventricular and nodal arrhythmia (#2372 of 2,481 by report volume); death-coded 23.1%. PlainBreed reaction plate · report volume stamp 13 · vintage 2025.

Informational only. FDA adverse-event reports are voluntary and do not prove causation; consult a veterinarian before acting on them. Verify with FDA CVM →