Cephalexin
2,713 adverse event reports submitted to the FDA
Important: Adverse event reports do not establish that a drug caused or contributed to the event. Consult your veterinarian before making treatment decisions.
2,713
Total Reports
255
Deaths Reported
940.0%
Death Rate
Active Ingredients
Cephalexin
Administration Routes
OralUnknownTopicalSubcutaneousOtherOphthalmicParenteralIntravenous
Species Affected
Dog 2,537
Unknown 86
Cat 85
Human 3
Ferret 2
Most Affected Breeds
Retriever - Labrador 398
Shepherd Dog - German 161
Retriever - Golden 131
Crossbred Canine/dog 107
Pit Bull 104
Unknown 90
Boxer (German Boxer) 89
Terrier - Bull - American Pit 89
Bulldog 84
Dog (unknown) 54
Most Reported Reactions
Vomiting 744
Emesis 372
Lethargy (see also Central nervous system depression in 'Neurological') 367
Overdose 220
Diarrhoea 215
Other abnormal test result NOS 206
Accidental exposure 206
Lack of efficacy - NOS 170
Anorexia 168
Seizure NOS 132
Death by euthanasia 131
Weight loss 117
Outcome Breakdown
Recovered/Normal
964 (36.7%)
Ongoing
758 (28.9%)
Outcome Unknown
574 (21.9%)
Euthanized
130 (4.9%)
Died
126 (4.8%)
Recovered with Sequela
75 (2.9%)
Source: FDA Center for Veterinary Medicine — Adverse Event Reports. Data reflects voluntary submissions and may not represent actual incidence rates.