What is the Process of transporting a drug from administration site to its site of action?

The process of transporting a drug from its administration site to its site of action involves several key steps: absorption, distribution, metabolism, and excretion. After administration, the drug is absorbed into the bloodstream, where it is then distributed throughout the body via the circulatory system. Once at the target site, the drug may undergo metabolic processes that can activate or deactivate its effects. Finally, the drug and its metabolites are eliminated from the body, primarily through the kidneys or liver.