What term describes the process of how drugs move throughout the body?

Pharmacokinetics is the term that describes the process of how drugs move throughout the body. This includes the key stages of absorption, distribution, metabolism, and excretion (often abbreviated as ADME). Understanding pharmacokinetics is essential for determining how drugs are taken up by the body, how they are transported to various sites of action, how they are metabolized (which can affect their efficacy and safety), and how they are eliminated from the body. This understanding helps in predicting the concentration of the drug in the bloodstream over time, which is critical for effective dosing and therapeutic outcomes.

In this context, pharmacodynamics refers to what the drug does to the body, specifically the biological effects and mechanisms of action. Pharmacogenetics focuses on how genetic variation affects an individual's response to drugs, facilitating personalized medicine. Toxicokinetics is a subfield that studies the time course of drugs and their toxic effects in the body. Each of these areas is significant in pharmacology, but pharmacokinetics specifically deals with the movement of drugs throughout the body, making it the correct answer for the question at hand.