METHODS	We conducted a five-year randomized , double-blind , multicenter trial of four intravenous regimens : diazepam ( 0.15 mg per kilogram of body weight ) followed by phenytoin ( 18 mg per kilogram ) , lorazepam ( 0.1 mg per kilogram ) , phenobarbital ( 15 mg per kilogram ) , and phenytoin ( 18 mg per kilogram ) .\