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One Liner

The percent of dose entering the systemic circulation after administration of a given dosage form.

Bioavailability

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This question belongs to the set "Pharmacology Chapter 1 Revision: Key One-Liner Questions for Pharmacist Exams". Click below to read detailed notes and attempt the full quiz.

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Try These Similar MCQs

  • A Heparin & Protamine
  • B Protamine & Zinc
  • C Heparin & Prothrombin
  • D All the above
Explanation: Chemical antagonism does not involve any receptors. Protamine is a positively charged protein at physiological pH and thus antagonizes the effects of Heparin which is negatively charged at physiological pH.
  • A CYP378A
  • B CYP4B2
  • C CYP3A4
  • D CYP256
Explanation: CYP3A4 is involved in the metabolism of majority of drugs and is also expressed extrahepatically. In fact, poor bioavailability of many drugs is attributed to the drug metabolism by CYP3A4 in gastrointestinal tract.
  • A Passive diffusion
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  • C Active transport
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  • A Colon
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