Bioavailability is the rate at which a drug enters the circulation and reaches its site of action.

Question

Quizplus · Accepted Answer

Bioavailability is defined as the rate and extent to which an active drug ingredient is absorbed and becomes available at the site of action. It is expressed as a percentage of the dose that enters the systemic circulation compared to the initial dose of the drug administered. Therefore, option A is correct.

Bioavailability Is the Rate at Which a Drug Enters the Circulation