Drug profile

The FDA adverse-event record for Cephalexin Chewable Tablets

19 adverse-event reports submitted to the FDA Center for Veterinary Medicine reference Cephalexin Chewable Tablets. See the species affected, top reactions, and outcomes below.

19
adverse-event reports
15.8%
death-coded share
Dog
most-reported species
5
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.
19
Total Reports
3
Deaths Reported
15.8%
Death Rate

Active Ingredients

Cephalexin Chewable Tablets

Administration Routes

UnknownOral

Species Affected

Dog 19

Most Affected Breeds

Retriever - Labrador 2
Shepherd Dog - German 2
Boxer (German Boxer) 2
Pinscher - Miniature 2
Crossbred Canine/dog 1
Terrier (unspecified) 1
Lhasa Apso 1
Chow Chow 1
Terrier - Silky 1
Bichon Frise 1

Most Reported Reactions

Vomiting 5
Other abnormal test result NOS 4
Elevated alanine aminotransferase (ALT) 3
Death 3
Anorexia 2
Lethargy (see also Central nervous system depression in 'Neurological') 2
Neutrophilia 2
Elevated serum alkaline phosphatase (SAP) 2
Bradycardia 2
Thrombocytopenia 2
Leucocytosis NOS 2
Abdominal discomfort 2

Outcome Breakdown

Ongoing
12 (63.2%)
Died
3 (15.8%)
Recovered/Normal
2 (10.5%)
Outcome Unknown
2 (10.5%)

Cephalexin Chewable Tablets Adverse Event Insights

19 reports name Cephalexin Chewable Tablets; 3 recorded a death outcome (15.8% of reported events, not a population-level mortality rate). Active ingredient: Cephalexin Chewable Tablets. Administration routes: Unknown, Oral.

By species: Dog (19 reports). By breed: Retriever - Labrador (2), Shepherd Dog - German (2), Boxer (German Boxer) (2).

Leading clinical signs: Vomiting (5), Other abnormal test result NOS (4), Elevated alanine aminotransferase (ALT) (3), Death (3). Outcome, 19 coded reports: Ongoing leads at 63.2%.

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.