Reaction profile

The FDA adverse-event record for hallucination

367 FDA reports name hallucination, a high-volume reaction in the CVM extract (VeDDRA 117). Plate stamps and neighbourhood peers follow.

#783 of 2,481
by report volume (all reactions)
367
reports citing this reaction
6.3%
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. Hallucination has 367 reports now versus 362 in that prior snapshot: 5 more (1.4%).

Report change
+5
Death-coded reports
+0
Death-coded share
−0.1 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 Hallucination changes

FDA AER · VeDDRA plate

Code 117 VOL-LOW

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

  • VOL-LOW 367 reports
  • DEATH-PAR 6.3%
  • MID-PACK #783/2481
  • PHOTO-FINISH Administration device…
  • SPECIES-DOG Dog · 243
  • DRUG-LEAD Buprenorphine · 71
  • DESK-WIDE 20 breeds
  • BOOK-FULL 8/8 fields

Nearest volume peer: Administration device NOS, malfunction (±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 Hallucination

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

Vomiting · highest174348Administration device… · near367Application site rash · near367Hallucination · this reaction367Nasal bleeding · near367Swollen mouth · near367Urinary tract neoplas… · low…10
FDA AER report volume · neighbourhood around Hallucination

Hallucination: low death-coded share in the FDA AER plate

Signature read: Hallucination's 6.3% death-coded share is among the lowest in the openFDA reaction corpus. Report volume is upper-third scale: 367 named reports in the openFDA extract. Death-coded share is lower-third: 23 of 367 reports (6.3% of named reports). Nearest volume peer: Administration device NOS, malfunction (±0 reports). Lead species Dog (243). Lead co-reported drug Buprenorphine (71).

Read these counts as reporting volume, not risk: per our methodology, Lead co-reported drug Buprenorphine 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 243
Cat 119
Horse 4
Monkey 1

Breeds Most Affected

Domestic Shorthair 63
Retriever - Labrador 27
Cat (unknown) 20
Crossbred Canine/dog 17
Chihuahua 14
Domestic Longhair 11
Pit Bull 10
Collie - Border 9
Domestic Mediumhair 9
Terrier - Yorkshire 8

Associated Drugs

Buprenorphine 71
Milbemycin Oxime + Spinosad 54
Spinosad 29
Pyrantel Pamoate;Sarolaner 26
Afoxolaner 22
Sarolaner 19
Ivermectin 16
Maropitant Citrate 14
Ivermectin + Pyrantel As Pamoate Salt 14
Robenacoxib 14
Butorphanol 13
Isoflurane 13
Meloxicam 8
Selamectin 8
Ketamine 8
Oclacitinib Maleate 8
Fluralaner Chew Tablets 8
Gabapentin 8
Carprofen 7
Selamectin;Sarolaner 7

Nationwide reactions with similar profiles

Two openFDA-derived peer sets for Hallucination, 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 (367 here).

Similar death-coded share

Nearest other reactions by death-coded share (6.3% 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 Hallucination (#783 of 2,481 by report volume); death-coded 6.3%. PlainBreed reaction plate · death-coded share stamp 6.3% · 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 →