Drug profile

The FDA adverse-event record for Doxepin

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

31
adverse-event reports
16.1%
death-coded share
Dog
most-reported species
6
Emesis - 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.
31
Total Reports
5
Deaths Reported
16.1%
Death Rate

Active Ingredients

Doxepin

Administration Routes

OralUnknown

Species Affected

Dog 28
Cat 1
Human 1
Unknown 1

Most Affected Breeds

Retriever - Labrador 6
Unknown 3
Retriever - Golden 2
Boxer (German Boxer) 2
Dalmatian 2
Dog (unknown) 2
Shih Tzu 1
Shepherd Dog - German 1
Hound - Basset 1
Domestic Shorthair 1

Most Reported Reactions

Emesis 6
Lethargy (see also Central nervous system depression in 'Neurological') 5
Diarrhoea 4
Elevated alanine aminotransferase (ALT) 4
Overdose 3
Death by euthanasia 3
Emesis (multiple) 3
Anorexia 3
Other abnormal test result NOS 2
Sneezing 2
Musculoskeletal disorder NOS 2
Lack of efficacy - NOS 2

Outcome Breakdown

Recovered/Normal
12 (41.4%)
Outcome Unknown
6 (20.7%)
Ongoing
6 (20.7%)
Died
3 (10.3%)
Euthanized
2 (6.9%)

Doxepin Adverse Event Insights

31 reports name Doxepin; 5 recorded a death outcome (16.1% of reported events, not a population-level mortality rate). Active ingredient: Doxepin. Administration routes: Oral, Unknown.

By species: Dog (28 reports), Cat (1 reports), Human (1 reports). By breed: Retriever - Labrador (6), Unknown (3), Retriever - Golden (2).

Leading clinical signs: Emesis (6), Lethargy (see also Central nervous system depression in 'Neurological') (5), Diarrhoea (4), Elevated alanine aminotransferase (ALT) (4). Outcome, 29 coded reports: Recovered/Normal leads at 41.4%.

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.