Drug profile

The FDA adverse-event record for Dexmedetomidine

2,507 FDA reports name Dexmedetomidine, a high-volume drug in the CVM extract. Species, reactions, and outcomes follow.

#88 of 2,679
by report volume (all drugs)
2,507
adverse-event reports
15.6%
death-coded share
Dog
most-reported species

Corpus placement

According to the FDA Center for Veterinary Medicine openFDA adverse-event extract, Dexmedetomidine ranks #88 of 2679 by total reports (2,507) and #348 of 1130 by death-coded share (15.6%). 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)
#88
This drug, reports of 2679
#348
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. Dexmedetomidine has 2,507 reports now versus 2,406 in that prior snapshot: 101 more (4.2%).

Report change
+101
Death-coded reports
+13
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 Dexmedetomidine changes

Signature read: death-coded report count at 392 is the most distinctive stamp on Dexmedetomidine's FDA AER row.

Important: Adverse event reports do not establish that a drug caused or contributed to the event. Consult your veterinarian before making treatment decisions.
2,507
Total Reports
392
Deaths Reported
15.6%
Death-coded share of reports

Active Ingredients

Dexmedetomidine

Administration Routes

UnknownIntramuscularIntravenousParenteralSubcutaneousOralBuccalOtherSublingualOphthalmic

Species Affected

Dog 1,349
Cat 1,091
Unknown 42
Rabbit 7
Guinea Pig 3
Horse 3
Turtle 3
Human 2
Pig 2
Chinchilla 1

Most Affected Breeds

Domestic Shorthair 591
Dog (unknown) 200
Cat (unknown) 173
Retriever - Labrador 151
Domestic Longhair 92
Unknown 84
Domestic Mediumhair 69
Shepherd Dog - German 64
Retriever - Golden 61
Boxer (German Boxer) 48

Most Reported Reactions

Lack of efficacy - NOS 411
Death 240
Not eating 196
Vomiting 188
Behavioural disorder NOS 180
Lethargy (see also Central nervous system depression in Neurological) 155
Anorexia 138
Injection site swelling 135
Bradycardia 132
Diarrhoea 129
Death by euthanasia 112
Seizure NOS 107

Outcome Breakdown

Recovered/Normal
1,107 (44.8%)
Outcome Unknown
510 (20.6%)
Ongoing
446 (18.0%)
Died
269 (10.9%)
Euthanized
123 (5.0%)
Recovered with Sequela
16 (0.6%)

Dexmedetomidine: 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 Dexmedetomidine, both floored at ≥50 reports so the neighborhoods stay in the advertised mass.

Similar death-coded share

Nearest other drugs by death-coded share (15.6% here), distinct from the volume row.

What to do with this drug

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 Dexmedetomidine (#88 of 2,679 by report volume); death-coded 15.6%. PlainBreed drug row · death-coded report count stamp 392 · 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 →