What word describes how a drug is delivered through the body?

The word that describes how a drug is delivered through the body is "distribution." This process refers to the dispersion or dissemination of substances throughout the fluids and tissues of the body after the drug has been administered and absorbed into the bloodstream. Distribution is influenced by factors such as blood flow to various tissues, the drug's lipophilicity or hydrophilicity, and its ability to cross biological membranes.

Understanding distribution is crucial in pharmacology because it affects the drug's therapeutic effects and potential toxicity. Once a drug is distributed, it can exert its effects on target sites within the body, which is essential for achieving the desired clinical outcomes.

The other terms relate to specific aspects of pharmacokinetics. Administration refers to the method by which a drug is given, absorption describes how the drug enters the bloodstream from the site of administration, and excretion involves the elimination of the drug from the body. These processes work together but have distinct roles in pharmacotherapy.