Drug profile

The FDA adverse-event record for Medetomidine Hydrochloride, Vatinoxan Hydrochloride

538 FDA reports name Medetomidine Hydrochloride, Vatinoxan Hydrochloride, a high-volume drug in the CVM extract. Species, reactions, and outcomes follow.

#287 of 2,679
by report volume (all drugs)
538
adverse-event reports
7.4%
death-coded share
Dog
most-reported species

Corpus placement

According to the FDA Center for Veterinary Medicine openFDA adverse-event extract, Medetomidine Hydrochloride, Vatinoxan Hydrochloride ranks #287 of 2679 by total reports (538) and #671 of 1130 by death-coded share (7.4%). National dual: Milbemycin Oxime + Spinosad is #1 of 2679 drugs by total adverse-event reports (149,624) at death-coded-share rank 965 of 1130 drugs with at least 50 reports (2.3%); separately, Atlantic Salmon Transgenic Whole (Opafp-Ghc2 Rdna Construct Inserted Into The A-Locus In The Eo-1A Lineage) is #1 highest death-coded share at 97.8% (report rank #821).

149,624
Milbemycin Oxime + Spinosad reports (#1)
97.8%
Atlantic Salmon Transgenic Whole (Opafp-Ghc2 Rdna Construct Inserted Into The A-Locus In The Eo-1A Lineage) death share (#1)
#287
This drug, reports of 2679
#671
This drug, death share of 1130

Report volume reflects how common a breed or drug is and how often owners and vets file — not actual risk. Death-coded share ranks are limited to entries with enough reports to be meaningful. The two maps do not agree at #1.

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. Medetomidine Hydrochloride, Vatinoxan Hydrochloride has 538 reports now versus 520 in that prior snapshot: 18 more (3.5%).

Report change
+18
Death-coded reports
+3
Death-coded share
+0.3 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 Medetomidine Hydrochloride, Vatinoxan Hydrochloride changes

Signature read: 538 reports place Medetomidine Hydrochloride, Vatinoxan Hydrochloride in the upper third of FDA AER volume (#287 of 2,679).

Important: Adverse event reports do not establish that a drug caused or contributed to the event. Consult your veterinarian before making treatment decisions.
538
Total Reports
40
Deaths Reported
7.4%
Death-coded share of reports

Active Ingredients

Medetomidine Hydrochloride, Vatinoxan Hydrochloride

Administration Routes

IntramuscularUnknownIntravenousSubcutaneousOral

Species Affected

Dog 526
Human 4
Unknown 3
Cat 3
Bobcat 1
Monkey 1

Most Affected Breeds

Dog (unknown) 210
Retriever - Labrador 53
American Pit Bull Terrier 28
Shepherd Dog - German 24
Retriever - Golden 14
Shepherd Dog - Australian 12
Dog (other) 11
Rottweiler 10
Boxer (German Boxer) 10
Chihuahua 10

Most Reported Reactions

Lack of efficacy - NOS 276
Diarrhoea 52
Sedation prolonged 35
Bradycardia 25
Partial lack of efficacy 21
Vomiting 21
Tachycardia 20
Hypotension 17
Death 17
Involuntary defecation 15
Unrelated death 15
Vocalisation 15

Outcome Breakdown

Recovered/Normal
436 (80.9%)
Outcome Unknown
59 (10.9%)
Euthanized
21 (3.9%)
Died
19 (3.5%)
Ongoing
4 (0.7%)

Medetomidine Hydrochloride, Vatinoxan Hydrochloride: high report volume in the FDA AER row

Read these counts as reporting volume, not risk: per our methodology, a widely-prescribed drug will rack up more raw FDA reports in a given year than a rarely-used one at an identical true rate, so we recommend comparing within similar-exposure products rather than across the full 2025 catalog.

High-volume nationwide drug peers

Two openFDA-derived peer sets for Medetomidine Hydrochloride, Vatinoxan Hydrochloride, both floored at ≥50 reports so the neighborhoods stay in the advertised mass.

Similar death-coded share

Nearest other drugs by death-coded share (7.4% here), distinct from the volume row.

What to do with this drug

  • Compare Medetomidine Hydrochloride, Vatinoxan Hydrochloride's report volume and death-coded share against similar drugs nationwide. See similar drugs
  • Read how death-coded share differs from a mortality rate before drawing conclusions. Understanding adverse events
  • Browse the full drug directory to compare report counts across products. All drugs

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 Medetomidine Hydrochloride, Vatinoxan Hydrochloride (#287 of 2,679 by report volume); death-coded 7.4%. PlainBreed drug row · report volume stamp 538 · 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 →