Phenobarbital is an antiepileptic, for use in the control of epilepsy in dogs.
Dosage and administration
The required dosage will differ to some extent between individuals and with the nature and severity of the disorder.
Dogs should be dosed orally, starting with a dose of 2–5 mg per kg bodyweight per day. The dose should be divided and administered twice daily.
Steady state serum concentrations are not reached until 1–2 weeks after treatment is initiated. The full effect of the medication does not appear for two weeks and doses should not be increased during this time