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Anesth Pain Med > Volume 10(4); 2015 > Article
Anesthetic Pharmacology
Anesthesia and Pain Medicine 2015;10(4):235-244.
DOI:    Published online October 31, 2015.
How to design intravenous anesthetic dose regimens based on pharmacokinetics and pharmacodynamics principles
Jong Cook Park
Department of Anesthesiology and Pain Medicine, Jeju National University School of Medicine, Jeju, Korea.
Received: 7 August 2015   • Revised: 5 October 2015   • Accepted: 6 October 2015
Pharmacokinetics is the study of the rate and degree of drug transport to various tissues in the human body. Pharmacokinetic parameters summarize drug kinetics and ideally predict a clinical situation. A single kinetic profile may be summarized by peak concentration, peak time, half-life and area under the curve. Dosage regimens are designed to confer the maximum desired effects for the required time period with minimal toxicity. Target-controlled infusions use pharmacokinetic models to titrate intravenous anesthetic administration to achieve a desired drug concentration. Context-sensitive half time is used to predict the clinical time course, rather than terminal half-life. It is important that anesthesiologists understand the basic pharmacological principles and apply them in their daily clinical practice. This review discusses the ways in which anesthesiologists can design a patient-specific dosage regimen of intravenous anesthetics by utilizing basic concepts of pharmacokinetics and pharmacodynamics using pharmacokinetic simulations.
Key Words: Intravenous anesthetics, Pharmacodynamics, Pharmacokinetic parameter, Pharmacokinetics, Target controlled infusion

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