Phenobarbitol

58 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.

Total Reports

Deaths Reported

2410.0%

Death Rate

Active Ingredients

Phenobarbitol

Administration Routes

OralUnknownIntravenousTopicalOphthalmic

Species Affected

Dog 57

Cat 1

Most Affected Breeds

Crossbred Canine/dog 8

Retriever - Labrador 5

Chihuahua 4

Dachshund (unspecified) 4

Retriever - Golden 4

Terrier - Yorkshire 3

Shih Tzu 3

Bulldog - French 2

Bichon Frise 2

Mixed (Dog) 1

Most Reported Reactions

Seizure NOS 24

Death by euthanasia 9

Ataxia 5

Lethargy (see also Central nervous system depression in 'Neurological') 5

Death 5

Unable to stand 4

Behavioural disorder NOS 4

Restlessness 3

Weakness 3

Diarrhoea 3

Elevated gamma-glutamyl transferase (GGT) 3

Paddling 3

Outcome Breakdown

Outcome Unknown

19 (32.8%)

Recovered/Normal

17 (29.3%)

Euthanized

9 (15.5%)

Ongoing

7 (12.1%)

Died

5 (8.6%)

Recovered with Sequela

1 (1.7%)

Source: FDA Center for Veterinary Medicine — Adverse Event Reports. Data reflects voluntary submissions and may not represent actual incidence rates.