Drug profile

The FDA adverse-event record for Famotadine

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

13
adverse-event reports
7.7%
death-coded share
Dog
most-reported species
4
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.
13
Total Reports
1
Deaths Reported
7.7%
Death Rate

Active Ingredients

Famotadine

Administration Routes

OralUnknown

Species Affected

Dog 11
Cat 2

Most Affected Breeds

Chihuahua 2
Maltese 1
Griffon - Brussels 1
Shepherd Dog - Belgian Malinois 1
Maine Coon 1
Spaniel - Cocker American 1
Retriever - Labrador 1
Boxer (German Boxer) 1
Terrier - Fox (unspecified) 1
Siamese 1

Most Reported Reactions

Vomiting 4
Diarrhoea 3
Hyperglycaemia 3
Anorexia 3
Emesis (multiple) 2
INEFFECTIVE, ASCARIDS NOS 2
Pale mucous membrane 2
Leucocytosis NOS 2
Hind limb ataxia 2
Weight loss 2
Lack of efficacy - NOS 2
Local swelling (not application site) 2

Outcome Breakdown

Outcome Unknown
6 (46.2%)
Ongoing
5 (38.5%)
Euthanized
1 (7.7%)
Recovered/Normal
1 (7.7%)

Famotadine Adverse Event Insights

13 reports name Famotadine; 1 recorded a death outcome (7.7% of reported events, not a population-level mortality rate). Active ingredient: Famotadine. Administration routes: Oral, Unknown.

By species: Dog (11 reports), Cat (2 reports). By breed: Chihuahua (2), Maltese (1), Griffon - Brussels (1).

Leading clinical signs: Vomiting (4), Diarrhoea (3), Hyperglycaemia (3), Anorexia (3). Outcome, 13 coded reports: Outcome Unknown leads at 46.2%.

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.