For control of grand mal, pyschomotor, or focal epilecptic seizures;
metabolized to Phenobarbital;
Adults and Peds >8yrs: day 1-3 = 100 mg HS, day 4-6=100 mg bid; day 7-9 =100 mg tid; day 10 (maintenance)=250mg tid;
Peds <8yrs: day 1-3: 50 mg HS; day 4-6=50 mg bid; day 7-9=100mg bid; day 10 (maintenance) = 125-250 mg tid