An extensive overview of applied clinical pharmacokinetics, focusing on the mathematical and practical aspects of designing individualized drug dosage regimens for various medications, particularly anticonvulsants and antibiotics. The source material, likely excerpts from a textbook, details the pharmacokinetic parameters (absorption, distribution, metabolism, and excretion) for specific drugs like phenytoin, vancomycin, aminoglycosides, and quinidine. It includes numerous dosage computation methods and equations—such as linear and nonlinear pharmacokinetics, the Sawchuk-Zaske method, and Bayesian programs—while also addressing how disease states and conditions (renal or hepatic dysfunction, obesity) affect drug disposition and necessitate dose adjustments, often using surrogate markers like creatinine clearance or the Child-Pugh score. Furthermore, the text emphasizes the clinical significance of therapeutic drug monitoring, including defining therapeutic and toxic concentration ranges and managing drug interactions that alter drug clearance or protein binding.
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