Pharmacokinetics and Pharmacodynamics, Fig. 1
A simplified schematic representation of the parameters broadly contributing to pharmacokinetics and pharmacodynamics. Pharmacokinetics represents the absorption, distribution, metabolism, and elimination of drugs from the body. Pharmacodynamics describes the interaction of drugs with target tissues. Note that there are a variety of interactions and additional steps that fine-tune and contribute to patients’ response to drug treatment that are not indicated here