Reaction profile

The FDA adverse-event record for drug dispensing error

255 FDA adverse-event reports reference drug dispensing error (VeDDRA 99822). Plate codes and volume neighbourhood below; species, breeds, and drugs follow.

#927 of 2,481
by report volume (all reactions)
255
reports citing this reaction
8.2%
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. Drug dispensing error has 255 reports now versus 255 in that prior snapshot: 0 the same number of (0.0%).

Report change
+0
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 Drug dispensing error changes

FDA AER · VeDDRA plate

Code 99822 VOL-LOW

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

  • VOL-LOW 255 reports
  • DEATH-PAR 8.2%
  • MID-PACK #927/2481
  • PHOTO-FINISH INEFFECTIVE, DELAYED…
  • SPECIES-DOG Dog · 188
  • DRUG-LEAD Milbemycin Oxime… · 74
  • DESK-WIDE 20 breeds
  • BOOK-FULL 8/8 fields

Nearest volume peer: INEFFECTIVE, DELAYED EFFECT (±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 Drug dispensing error

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

Vomiting · highest174348Drug dispensing error · this…255INEFFECTIVE, DELAYED… · near255Constricted pupils · near254Drug label confusion · near254Hearing affected · near254Urinary tract neoplas… · low…10
FDA AER report volume · neighbourhood around Drug dispensing error

What the FDA AER plate says about Drug dispensing error

Signature read: death-coded share at 8.2% is the most distinctive outcome stamp on Drug dispensing error. Report volume sits in the middle third of the reaction corpus. 21 of 255 reports were death-coded (8.2% of named reports, not a population mortality rate). Nearest volume peer: INEFFECTIVE, DELAYED EFFECT (±0 reports). Lead species Dog (188). Lead co-reported drug Milbemycin Oxime + Spinosad (74).

Read these counts as reporting volume, not risk: per our methodology, Lead co-reported drug Milbemycin Oxime + Spinosad 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 188
Cat 30
Unknown 15
Cattle 9
Chicken 3
Human 3
Pig 2
Goat 1
Sheep 1
Turkey 1

Breeds Most Affected

Unknown 23
Terrier - Yorkshire 19
Chihuahua 16
Shih Tzu 13
Dog (unknown) 11
Domestic Shorthair 10
Domestic (unspecified) 9
Spaniel - King Charles Cavalier 7
Schnauzer (unspecified) 7
Maltese 6

Associated Drugs

Milbemycin Oxime + Spinosad 74
Spinosad 34
Trilostane 13
Monensin Sodium 13
Oclacitinib Maleate 13
Carprofen 12
Levothyroxine Sodium 12
Fluralaner 13.64% 12-Week Chew 12
Human Insulin 9
Clomipramine 7
Ivermectin 6
Fluralaner Chew Tablets 6
Imidacloprid + Moxidectin 5
Clomipramine Hydrochloride 5
Lufenuron + Milbemycin Oxime 5
Selamectin 4
Firocoxib 4
Ivermectin + Pyrantel 3
Gabapentin 3
Grapiprant 3

Nationwide reactions with similar profiles

Two openFDA-derived peer sets for Drug dispensing error, 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 (255 here).

Similar death-coded share

Nearest other reactions by death-coded share (8.2% 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 Drug dispensing error (#927 of 2,481 by report volume); death-coded 8.2%. PlainBreed reaction plate · death-coded share stamp 8.2% · 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 →