Drug profile

The FDA adverse-event record for Fluoxetine

1,238 adverse-event reports submitted to the FDA Center for Veterinary Medicine reference Fluoxetine. See the species affected, top reactions, and outcomes below.

1,238
adverse-event reports
5.0%
death-coded share
Dog
most-reported species
159
Vomiting - 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.
1,238
Total Reports
62
Deaths Reported
5.0%
Death Rate

Active Ingredients

Fluoxetine

Administration Routes

OralUnknownTransdermalAuricular (Otic)Topical

Species Affected

Dog 1,006
Cat 133
Unknown 83
Human 15
Other 1

Most Affected Breeds

Crossbred Canine/dog 120
Unknown 101
Retriever - Labrador 98
Domestic Shorthair 84
Shepherd Dog - German 48
Dog (unknown) 46
Retriever - Golden 30
Shih Tzu 29
Beagle 27
Terrier (unspecified) 24

Most Reported Reactions

Vomiting 159
Lack of efficacy - NOS 141
Anorexia 105
Diarrhoea 86
Seizure NOS 74
Lethargy (see also Central nervous system depression in Neurological) 64
Behavioural disorder NOS 62
Lethargy (see also Central nervous system depression in 'Neurological') 58
Decreased appetite 55
Depression 51
Accidental exposure 47
Shaking 47

Outcome Breakdown

Outcome Unknown
318 (36.4%)
Recovered/Normal
247 (28.3%)
Ongoing
229 (26.2%)
Died
31 (3.5%)
Euthanized
31 (3.5%)
Recovered with Sequela
18 (2.1%)

Fluoxetine Adverse Event Insights

1,238 reports name Fluoxetine; 62 recorded a death outcome (5.0% of reported events, not a population-level mortality rate). Active ingredient: Fluoxetine. Administration routes: Oral, Unknown, Transdermal, Auricular (Otic).

By species: Dog (1,006 reports), Cat (133 reports), Unknown (83 reports). By breed: Crossbred Canine/dog (120), Unknown (101), Retriever - Labrador (98).

Leading clinical signs: Vomiting (159), Lack of efficacy - NOS (141), Anorexia (105), Diarrhoea (86). Outcome, 874 coded reports: Outcome Unknown leads at 36.4%.

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.