[Pharmacokinetics of cephapirin sodium during intravenous infusion]. 
Studies on absorption and excretion of cephapirin (CEPR) are described.  CEPR was administered by intravenous drip infusion to 4 healthy volunteers weighing 53 kg to 61 kg, and the serum levels were measured.  Pharmacokinetic parameters were calculated by one-compartment model and two-compartment model.  Each model was comparatively applied to every founds.  Most appropriate administration rate of intravenous drip infusion was discussed due to calculated serum levels, therapeutic AUC and effective time.