the concentrations of phenytoin in serum water 1 min after injection of 3 mg/kg ( 0.371 +/- 0.054 microgram/ml ) and 45 min after injection of 8 mg/kg ( 0.399 +/- 0.049 microgram/ml ) were not significantly different , but drug concentrations in the csf and brain were appreciably higher after the latter dose .
C0086045
concentrations
C0006104
brain