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2018 (v.26 no.1)

Translational and Clinical Pharmacology

Korean Society for Clinical Pharmacology and Therapeutics
Quarter
ISSN: 2289-0882

  • Understanding the pharmacokinetics of prodrug and metabolite

    Seungil Cho, Young-Ran Yoon

    TCP | v.26, no.1, pp.01-05, Mar, 2018

    Abstract

    This tutorial explains the pharmacokinetics of a prodrug and its active metabolite (or parent drug) using a two-step, consecutive, first-order irreversible reaction as a basic model for prodrug metabolism.
    In this model, the prodrug is metabolized and produces the parent drug, which is subsequentlyeliminated. The mathematical expressions for pharmacokinetic parameters were derived step by step. In addition, we visualized these expressions to help understand the relationship between pharmacokinetic parameters easily. For the elimination rate-limited and formation rate-limited metabolism,we analyzed the plasma drug concentration versus time curve of a prodrug administered intravenously.

    Keyword

    Pharmacokinetics, Prodrug, Formation rate-limited, Elimination rate-limited, Metabolism