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. (A)</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. (D)</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. (B)</p> Signup and view all the answers

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

<p>Basic drugs (C)</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. (A)</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. (D)</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. (B)</p> Signup and view all the answers

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