Pharmacokinetics
branch of pharmacology dedicated to determining the fate of substances administered to a living organism
Pharmacokinetics is a branch of pharmacology which studies what the body does to a drug. Pharmacokinetics looks at how a substance enters, moves through and exits the body. It relates how the dose delivered affects the concentration within the body. It is closely related to another branch of pharmacology, pharmacodynamics, which describes how a drugs affects the body.