Drug profile

The FDA adverse-event record for Amitraz

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

359
adverse-event reports
3.6%
death-coded share
Dog
most-reported species
52
Lethargy (see also Central nervous system depression in 'Neurological') - 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.
359
Total Reports
13
Deaths Reported
3.6%
Death Rate

Active Ingredients

Amitraz

Administration Routes

TopicalUnknownCutaneousOralOtherOphthalmicRespiratory (Inhalation)Subcutaneous

Species Affected

Dog 292
Unknown 49
Human 18

Most Affected Breeds

Unknown 67
Retriever - Labrador 24
Crossbred Canine/dog 23
Boxer (German Boxer) 22
Dog (unknown) 16
Chihuahua 15
Terrier - Bull - American Pit 13
Shih Tzu 10
Bulldog 9
Shepherd Dog - German 9

Most Reported Reactions

Lethargy (see also Central nervous system depression in 'Neurological') 52
Vomiting 43
Depression 42
Emesis 35
Lack of efficacy (ectoparasite) - Demodex 33
Pruritus 28
Ataxia 26
Anorexia 24
Diarrhoea 22
Vials, Leaking 20
Uncoded sign 18
Behavioural disorder NOS 15

Outcome Breakdown

Recovered/Normal
92 (42.4%)
Ongoing
68 (31.3%)
Outcome Unknown
35 (16.1%)
Died
10 (4.6%)
Recovered with Sequela
9 (4.1%)
Euthanized
3 (1.4%)

Amitraz Adverse Event Insights

359 reports name Amitraz; 13 recorded a death outcome (3.6% of reported events, not a population-level mortality rate). Active ingredient: Amitraz. Administration routes: Topical, Unknown, Cutaneous, Oral.

By species: Dog (292 reports), Unknown (49 reports), Human (18 reports). By breed: Unknown (67), Retriever - Labrador (24), Crossbred Canine/dog (23).

Leading clinical signs: Lethargy (see also Central nervous system depression in 'Neurological') (52), Vomiting (43), Depression (42), Emesis (35). Outcome, 217 coded reports: Recovered/Normal leads at 42.4%.

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.