Final answer:
Metabolism is the process through which the body inactivates and eliminates medications.
Step-by-step explanation:
The process through which the body inactivates a medication after it has been used in order to eliminate the medication from the body is called metabolism. Metabolism involves the chemical transformations that a drug undergoes in the body, often resulting in the formation of metabolites that are more easily eliminated. These transformations are typically carried out by enzymes, such as the cytochrome P450 enzymes, which catalyze reactions such as oxidation, reduction, and hydrolysis.