Abstract
Pharmacokinetics (PK) is the study of drug concentration in the body with respect to time. The four major processes affecting drug concentration are drug absorption, distribution, metabolism, and excretion. In examining the PK processes, this chapter aims to provide considerations in drug absorption, the concept of drug distribution, metabolism and drug interactions, and renal excretion. PK parameters area under the curve (AUC), elimination rate constant (k), half-life (t1/2), clearance (Cl), and volume of distribution (Vd) are introduced to provide clinicians an understanding of the PK of anesthetic agents. Pharmacodynamics (PD) is the study of drug action in the body with respect to time. Taken together, the understanding of PK and PD will aid a clinician in the design of anesthetic doses and dosing frequencies to achieve desired therapeutic effects while minimizing adverse reactions.
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Chan, P., Uchizono, J.A. (2015). Pharmacokinetics and Pharmacodynamics of Anesthetics. In: Kaye, A., Kaye, A., Urman, R. (eds) Essentials of Pharmacology for Anesthesia, Pain Medicine, and Critical Care. Springer, New York, NY. https://doi.org/10.1007/978-1-4614-8948-1_1
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