to 39 neonates and premature infants 1 to 28 days old with various bacterial infections or suspected bacterial infections and were nearing cure-stage via ceftriaxone ( ctrx ) therapy , ctrx 10 mg/kg or 20 mg/kg was intravenously administered by bolus injection , and the changes in serum concentrations and urinary recovery rates of the drug were examined .
C0004623
bacterial
C0007561
ctrx