The classical role of the pharmacist in providing clinical pharmacokinetic services is reviewed and contrasted with the role in drug level interpretation now being assumed by many laboratory analysts. Arguments are presented for better articulation of the pharmacist's role and improved utilization of his unique knowledge of drug therapy in the application of drug level determinations to patient management. Without an increased presence in clinical pharmacokinetics, other professionals, less appropriately trained, may fill a substantial void which has recently developed in this important area of drug therapy.
