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Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
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After oral administration, the fraction of drug reaching the site of circulation is known as:
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The correct answer is  Ans. B. BioavailabilityThe fraction of drug reaching the site of circulation is known as bioavailability. IT is measured via area under the curve. Clearance is volume of plasma which is cleared from the drug per unit time. Distribution and elimination are parameters of pharmacokinetics.