Reaction profile

The FDA adverse-event record for patient instructions for use on label confusing

647 FDA reports name patient instructions for use on label confusing, a high-volume reaction in the CVM extract (VeDDRA 93081). Plate stamps and neighbourhood peers follow.

#541 of 2,481
by report volume (all reactions)
647
reports citing this reaction
0.3%
death-coded share
Unknown
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. Patient instructions for use on label confusing has 647 reports now versus 633 in that prior snapshot: 14 more (2.2%).

Report change
+14
Death-coded reports
+0
Death-coded share
−0.0 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 Patient instructions for use on label confusing changes

FDA AER · VeDDRA plate

Code 93081 VOL-MID

VOL-MID · DEATH-RARE · UPPER-Q · PHOTO-FINISH · SPECIES-UNKNOWN · DRUG-LEAD · DESK-WIDE · BOOK-FULL

  • VOL-MID 647 reports
  • DEATH-RARE 0.3%
  • UPPER-Q #541/2481
  • PHOTO-FINISH Temporary deafness
  • SPECIES-UNKNOWN Unknown · 534
  • DRUG-LEAD Nitenpyram · 259
  • DESK-WIDE 20 breeds
  • BOOK-FULL 8/8 fields

Nearest volume peer: Temporary deafness (±0 reports)

Upper-third report volume drives the scale stamps on this plate; death-coded share and co-report peers follow. Not a clinical diagnosis.

High-volume neighbourhood around Patient instructions for use on label confusing

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

Vomiting · highest174348Tongue disorder NOS · near649Liver failure · near648Patient instructions… · this…647Temporary deafness · near647Difficulty standing · near645Urinary tract neoplas… · low…10
FDA AER report volume · neighbourhood around Patient instructions for use on label confusing

Patient instructions for use on label confusing: low death-coded share in the FDA AER plate

Signature read: Patient instructions for use on label confusing's 0.3% death-coded share is among the lowest in the openFDA reaction corpus. Report volume is upper-third scale: 647 named reports in the openFDA extract. Death-coded share is lower-third: 2 of 647 reports (0.3% of named reports). Nearest volume peer: Temporary deafness (±0 reports). Lead species Unknown (534). Lead co-reported drug Nitenpyram (259).

Read these counts as reporting volume, not risk: per our methodology, Lead co-reported drug Nitenpyram 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

Unknown 534
Dog 79
Cat 21
Human 13

Breeds Most Affected

Unknown 547
Chihuahua 18
Dog (unknown) 13
Domestic Shorthair 11
Terrier - Yorkshire 6
Shih Tzu 5
Cat (unknown) 4
Maltese 3
Retriever - Labrador 3
Crossbred Canine/dog 2

Associated Drugs

Nitenpyram 259
Praziquantel 188
Febantel + Praziquantel + Pyrantel Pamoate 89
Imidacloprid 38
Fluralaner Spot-On Solution 22
Capromorelin Tartrate 12
Lotilaner 7
Milbemycin Oxime + Praziquantel 5
Milbemycin Oxime + Spinosad 4
Cyclosporine 4
Flea And Tick Shampoo 3
Grapiprant 3
Tylosin Tartrate 3
Shampoo 3
Miconazole + Polymyxin B + Prednisolone 2
Spinosad 2
Robenacoxib 2
Pyrantel Pamoate, Praziquantel 2
Capromorelin 2
Deracoxib 1

Nationwide reactions with similar profiles

Two openFDA-derived peer sets for Patient instructions for use on label confusing, 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 (647 here).

Similar death-coded share

Nearest other reactions by death-coded share (0.3% 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 Patient instructions for use on label confusing (#541 of 2,481 by report volume); death-coded 0.3%. PlainBreed reaction plate · death-coded share stamp 0.3% · 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 →