The pharmacokinetics of gentamicin were examined in two functionally anephric patients undergoing peritoneal dialysis (PD). Peritoneal dialysis effectively decreased the gentamicin half-life (t1/2beta;) by 73 and 78percnt; while increasing total body clearance QB(ml/min/kg of gentamicin 4.3ndash; and 3.4-fold. The appreciable variability in gentamicin pharmacokinetics among renal failure patients being peritoneally dialyzed may necessitate dosage adjustments based on rapid and accurate measurement of serum gentamicin concentrations.
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