Blood-Brain Barrier in CNS
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Questions and Answers

What is the main difference between protein-bound drugs and unbound drugs?

  • Protein-bound drugs have a longer half-life compared to unbound drugs.
  • Protein-bound drugs are attracted to lipophilic groups, while unbound drugs are attracted to hydrophilic groups.
  • Protein-bound drugs are more soluble in water than unbound drugs.
  • Protein-bound drugs are inactive, while unbound drugs are active. (correct)
  • Which proteins do acidic drugs primarily bind to in the plasma?

  • Hemoglobin
  • Globin
  • α1 – acid glycoprotein
  • Albumin (correct)
  • In the context of plasma protein binding, what does it mean when two drugs bind at the same site of the protein and are administered together?

  • There is no interaction between the two drugs.
  • It increases the solubility of the drugs in plasma.
  • It can lead to potential problems or drug interactions. (correct)
  • It enhances the effectiveness of both drugs.
  • What factor should be considered when treating an elderly person with a basic drug?

    <p>The increase in globin levels with age.</p> Signup and view all the answers

    What happens to the protein-bound drug once the free drug enters the target tissue?

    <p>It is released to maintain equilibrium.</p> Signup and view all the answers

    What effect does a diseased state have on the effectiveness of a drug that undergoes plasma protein binding?

    <p>It can cause problems on the effectiveness of the drug.</p> Signup and view all the answers

    Which type of drugs primarily bind to α1 – acid glycoprotein in plasma?

    <p>Basic drugs</p> Signup and view all the answers

    How is the bound drug different from the unbound drug in terms of pharmacological activity?

    <p>The bound drug is inactive, while the unbound drug is active.</p> Signup and view all the answers

    Why is it important to consider protein binding when administering drugs?

    <p>To predict potential drug-drug interactions.</p> Signup and view all the answers

    What role does equilibrium play between protein-bound and free drug in target tissues?

    <p>Protein-bound drug is released to maintain equilibrium with free drug.</p> Signup and view all the answers

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