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KMID : 0043319800030010013
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Archives of Pharmacal Research
1980 Volume.3 No. 1 p.13 ~ p.16
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Mathematical Description of Drug Distribution in the Isolated Organ
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Kim CK
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Abstract
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The model of an isolated organ system has been constructed to simulate the behavior of drug in the circulatory system of an acting organ or site. The model is developed on the following assumptions: The drug in the microcirculatory system cannot permeate the capillary walls. The capillary bed is modeled as a simple ideal plug flow system with and without radial concentration gradient. The mathematical model is developed from basic considerations of drug distribution with hemodynamical and pharmacokinetical meanings. It is considered that a nonmetabolic drug substance is injected into the arterial inflow site of an isolated organ at a constant rate. The concentration of the drug in the outflow site is mathematically expressed as a function of time.
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