Levetiracetam
614 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.
614
Total Reports
93
Deaths Reported
1510.0%
Death Rate
Active Ingredients
Levetiracetam
Administration Routes
OralUnknownIntravenousRectalSubcutaneousTopicalParenteral
Species Affected
Dog 583
Cat 29
Unknown 1
Human 1
Most Affected Breeds
Retriever - Labrador 61
Retriever - Golden 33
Chihuahua 26
Shepherd Dog - German 23
Crossbred Canine/dog 22
Boxer (German Boxer) 21
Terrier - Yorkshire 20
Domestic Shorthair 20
Dog (unknown) 19
Terrier (unspecified) 18
Most Reported Reactions
Seizure NOS 290
Vomiting 71
Death by euthanasia 66
Lethargy (see also Central nervous system depression in 'Neurological') 59
Ataxia 52
Tremor 35
Diarrhoea 33
Elevated alanine aminotransferase (ALT) 33
Behavioural disorder NOS 31
Lack of efficacy - NOS 30
Other abnormal test result NOS 27
Death 27
Outcome Breakdown
Ongoing
225 (36.6%)
Recovered/Normal
149 (24.3%)
Outcome Unknown
138 (22.5%)
Euthanized
65 (10.6%)
Died
28 (4.6%)
Recovered with Sequela
9 (1.5%)
Source: FDA Center for Veterinary Medicine — Adverse Event Reports. Data reflects voluntary submissions and may not represent actual incidence rates.