First-Pass Effect · Pharmacology

Which drug characteristic may increase the impact of the first-pass effect?

  1. Extensive hepatic metabolism
  2. Low hepatic blood flow
  3. Poor intestinal absorption
  4. High renal excretion of the drug
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Correct answer: Extensive hepatic metabolism

Drugs that are extensively metabolized in the liver are more susceptible to the first-pass effect. This can greatly reduce their systemic availability after oral administration.

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