Reaction profile

The FDA adverse-event record for abnormal behaviour nos

25 FDA reports name abnormal behaviour nos, a lower-volume reaction in the CVM extract (VeDDRA 1291). Plate stamps and neighbourhood peers follow.

#2066 of 2,481
by report volume (all reactions)
25
reports citing this reaction
0.0%
death-coded share
Human
most-affected species
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. Abnormal behaviour NOS has 25 reports now versus 25 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 Abnormal behaviour NOS changes

FDA AER · VeDDRA plate

Code 1291 VOL-TRACE

VOL-TRACE · DEATH-RARE · LOWER-Q · PHOTO-FINISH · SPECIES-HUMAN · DRUG-LEAD · DESK-NARROW · BOOK-FULL

  • VOL-TRACE 25 reports
  • DEATH-RARE 0.0%
  • LOWER-Q #2066/2481
  • PHOTO-FINISH Buccal ulceration
  • SPECIES-HUMAN Human · 25
  • DRUG-LEAD Selamectin · 2
  • DESK-NARROW 1 breeds
  • BOOK-FULL 8/8 fields

Nearest volume peer: Buccal ulceration (±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 Abnormal behaviour NOS

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

Vomiting · highest174348Abnormal behaviour NOS · thi…25Buccal ulceration · near25Dizzy spell · near25Elevated serum lipids · near25HCO3 LOW, BLOOD · near25Urinary tract neoplas… · low…10
FDA AER report volume · neighbourhood around Abnormal behaviour NOS

Abnormal behaviour NOS: low death-coded share in the FDA AER plate

Signature read: Abnormal behaviour NOS's 0.0% death-coded share is among the lowest in the openFDA reaction corpus. Report volume is lower-third scale: 25 named reports in the openFDA extract. Death-coded share is lower-third: 0 of 25 reports (0.0% of named reports). Nearest volume peer: Buccal ulceration (±0 reports). Lead species Human (25). Lead co-reported drug Selamectin (2).

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

Human 25

Breeds Most Affected

Unknown 25

Associated Drugs

Selamectin 2
Spinosad 2
Maropitant Citrate 2
Doramectin 2
Clomipramine 2
Altrenogest 1
Maropitant 1
Isoflupredone Acetate; Neomycin Sulfate; Tetracaine Hydrochloride 1
Flunixin Meglumine 1
Milbemycin Oxime + Spinosad 1
Fentanyl 1
Ivermectin 0.5% Pour-On Topical Solution 1
Levothyroxine Sodium 1
Blood Pressure Medication (Unknown) 1
Monensin Sodium 1
Dimethyl Sulfoxide 1
Oxytetracycline Dihydrate (Oxytetracycline Amphoteric) 1
Ibuprofen 1
Oxfendazole 1
Praziquantel 1

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 Abnormal behaviour NOS (#2066 of 2,481 by report volume); death-coded 0.0%. PlainBreed reaction plate · death-coded share stamp 0.0% · 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 →