Which site in the gastrointestinal tract is primarily responsible for drug absorption affecting bioavailability?
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Correct answer: Small intestine
The small intestine has a large surface area and rich blood supply. These features make it the primary site for absorption of most orally administered drugs.
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More Bioavailability questions
- Which phenomenon refers to the metabolic breakdown of a drug before it reaches systemic circulation?
- Which dosage form generally has higher bioavailability than tablets?
- Which type of drug interaction may decrease the bioavailability of orally administered drugs?
- Which pharmacokinetic process occurs immediately after a drug enters systemic circulation?
- Which route of administration bypasses first-pass metabolism in the liver?
- Which factor related to the patient can alter drug bioavailability?