Drug profile

The FDA adverse-event record for Atipamezole

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

859
adverse-event reports
16.3%
death-coded share
Dog
most-reported species
116
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.
859
Total Reports
140
Deaths Reported
16.3%
Death Rate

Active Ingredients

Atipamezole

Administration Routes

IntramuscularUnknownParenteralIntravenousSubcutaneousOther

Species Affected

Dog 550
Cat 277
Unknown 24
Turtle 3
Monkey 1
Rabbit 1
Human 1
Other 1
Camel 1

Most Affected Breeds

Domestic Shorthair 115
Retriever - Labrador 67
Domestic (unspecified) 59
Dog (unknown) 50
Cat (unknown) 38
Crossbred Canine/dog 37
Unknown 32
Pit Bull 31
Retriever - Golden 27
Boxer (German Boxer) 21

Most Reported Reactions

Lack of efficacy - NOS 116
Death 91
Injection site swelling 86
Vomiting 76
Diarrhoea 62
INEFFECTIVE, REVERSAL 62
Hypersalivation 52
Behavioural disorder NOS 52
Not eating 51
Lethargy (see also Central nervous system depression in Neurological) 48
Anorexia 47
Weight loss 39

Outcome Breakdown

Outcome Unknown
215 (34.6%)
Recovered/Normal
170 (27.3%)
Died
115 (18.5%)
Ongoing
94 (15.1%)
Euthanized
25 (4.0%)
Recovered with Sequela
3 (0.5%)

Atipamezole Adverse Event Insights

859 reports name Atipamezole; 140 recorded a death outcome (16.3% of reported events, not a population-level mortality rate). Active ingredient: Atipamezole. Administration routes: Intramuscular, Unknown, Parenteral, Intravenous.

By species: Dog (550 reports), Cat (277 reports), Unknown (24 reports). By breed: Domestic Shorthair (115), Retriever - Labrador (67), Domestic (unspecified) (59).

Leading clinical signs: Lack of efficacy - NOS (116), Death (91), Injection site swelling (86), Vomiting (76). Outcome, 622 coded reports: Outcome Unknown leads at 34.6%.

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.