Drug profile

The FDA adverse-event record for Dexmedetomidine

2,265 adverse-event reports submitted to the FDA Center for Veterinary Medicine reference Dexmedetomidine. See the species affected, top reactions, and outcomes below.

2,265
adverse-event reports
16.1%
death-coded share
Dog
most-reported species
393
Lack of efficacy - NOS - top reaction
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Important: Adverse event reports do not establish that a drug caused or contributed to the event. Consult your veterinarian before making treatment decisions.
2,265
Total Reports
365
Deaths Reported
16.1%
Death Rate

Active Ingredients

Dexmedetomidine

Administration Routes

UnknownIntramuscularIntravenousParenteralSubcutaneousBuccalOralOtherSublingualOphthalmic

Species Affected

Dog 1,244
Cat 961
Unknown 35
Rabbit 7
Guinea Pig 3
Horse 3
Turtle 3
Human 2
Pig 2
Chinchilla 1

Most Affected Breeds

Domestic Shorthair 521
Dog (unknown) 190
Cat (unknown) 166
Retriever - Labrador 136
Domestic Longhair 79
Unknown 77
Shepherd Dog - German 58
Retriever - Golden 56
Domestic Mediumhair 54
Boxer (German Boxer) 47

Most Reported Reactions

Lack of efficacy - NOS 393
Death 229
Vomiting 177
Not eating 166
Behavioural disorder NOS 153
Anorexia 131
Lethargy (see also Central nervous system depression in Neurological) 125
Bradycardia 124
Injection site swelling 122
Diarrhoea 117
Lethargy (see also Central nervous system depression in 'Neurological') 106
Death by euthanasia 96

Outcome Breakdown

Recovered/Normal
1,018 (45.5%)
Outcome Unknown
452 (20.2%)
Ongoing
388 (17.4%)
Died
258 (11.5%)
Euthanized
107 (4.8%)
Recovered with Sequela
13 (0.6%)

Dexmedetomidine Adverse Event Insights

2,265 reports name Dexmedetomidine; 365 recorded a death outcome (16.1% of reported events, not a population-level mortality rate). Active ingredient: Dexmedetomidine. Administration routes: Unknown, Intramuscular, Intravenous, Parenteral.

By species: Dog (1,244 reports), Cat (961 reports), Unknown (35 reports). By breed: Domestic Shorthair (521), Dog (unknown) (190), Cat (unknown) (166).

Leading clinical signs: Lack of efficacy - NOS (393), Death (229), Vomiting (177), Not eating (166). Outcome, 2,236 coded reports: Recovered/Normal leads at 45.5%.

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.

Source: FDA Center for Veterinary Medicine openFDA Animal & Veterinary Adverse Events (CVM AER) · 2025

Every figure on PlainBreed is rendered directly from FDA openFDA adverse event data, no number is typed in by an editor. This page draws directly on FDA openFDA data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.