Reaction profile

The FDA adverse-event record for tail paresis

72 FDA adverse-event reports reference tail paresis (VeDDRA 2171). Plate codes and volume neighbourhood below; species, breeds, and drugs follow.

#1561 of 2,481
by report volume (all reactions)
72
reports citing this reaction
11.1%
death-coded share
Dog
most-affected species

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. Tail paresis has 72 reports now versus 71 in that prior snapshot: 1 more (1.4%).

Report change
+1
Death-coded reports
+0
Death-coded share
−0.2 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 Tail paresis changes

FDA AER · VeDDRA plate

Code 2171 VOL-LOW

VOL-LOW · DEATH-ELEV · MID-PACK · PHOTO-FINISH · SPECIES-DOG · DRUG-LEAD · DESK-WIDE · BOOK-FULL

  • VOL-LOW 72 reports
  • DEATH-ELEV 11.1%
  • MID-PACK #1561/2481
  • PHOTO-FINISH Ear flapping/twitching
  • SPECIES-DOG Dog · 54
  • DRUG-LEAD Bedinvetmab · 17
  • DESK-WIDE 20 breeds
  • BOOK-FULL 8/8 fields

Nearest volume peer: Ear flapping/twitching (±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.

Report-volume neighbourhood around Tail paresis

Highest and lowest poles plus nearest volume peers, not a full 2,500-reaction corpus board reprint.

Vomiting · highest174348Ear flapping/twitching · near72Elevated BUN · near72Embolism · near72Fatty liver · near72Tail paresis · this reaction72Urinary tract neoplas… · low…10
FDA AER report volume · neighbourhood around Tail paresis

What the FDA AER plate says about Tail paresis

Signature read: 8 death-coded reports is the most distinctive absolute-outcome stamp on Tail paresis. Report volume sits in the middle third of the reaction corpus. 8 of 72 reports were death-coded (11.1% of named reports, not a population mortality rate). Nearest volume peer: Ear flapping/twitching (±0 reports). Lead species Dog (54). Lead co-reported drug Bedinvetmab (17).

Read these counts as reporting volume, not risk: per our methodology, Lead co-reported drug Bedinvetmab 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 54
Cat 16
Horse 2

Breeds Most Affected

Retriever - Labrador 15
Domestic Shorthair 9
Shepherd Dog - German 6
Crossbred Canine/dog 3
Terrier - Yorkshire 2
Terrier - Bull - American Pit 2
Lhasa Apso 2
Chihuahua 2
Beagle 2
Poodle (unspecified) 2

Associated Drugs

Bedinvetmab 17
Gabapentin 8
Grapiprant 8
Frunevetmab 7
Maropitant Citrate 6
Fluralaner 13.64% 12-Week Chew 5
Sarolaner 4
Pyrantel Pamoate;Sarolaner 4
Oclacitinib Maleate 4
Unknown Otic Product 3
Fluralaner Chew Tablets 3
Fipronil 10%/S Methoprene 9% Spot On 3
Ivermectin + Pyrantel As Pamoate Salt 3
Buprenorphine 3
Polysulfated Glycosaminoglycan 3
Galliprant 3
Imidacloprid + Moxidectin 2
Carprofen 2
Trilostane 2
Nitenpyram 2

Nationwide reactions with similar profiles

Two openFDA-derived peer sets for Tail paresis, both floored at ≥50 reports so the neighborhoods stay in the advertised mass (the volume chart above is the unfloored photo-finish strip).

Similar report volume

Nearest other reactions by FDA report count (72 here).

Similar death-coded share

Nearest other reactions by death-coded share (11.1% here), distinct from the volume row.

What to do with this reaction

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 Tail paresis (#1561 of 2,481 by report volume); death-coded 11.1%. PlainBreed reaction plate · death-coded report count stamp 8 · 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 →