Gastrointestinal Medications Mechanism of Action Quiz
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Questions and Answers

What is the mechanism of action of Vedolizumab?

  • Binds to TNFα and prevents binding to TNF receptors
  • Reduces cAMP and attenuates protein kinases stimulation on H+/K+ ATPase
  • Reversibly inhibits α4β7 interaction with MAdCAM-1 on endothelial cells (correct)
  • Irreversibly inhibits H+/K+ ATPase and antagonizes all stimulants of gastric secretion

What is the mechanism of action of Metronidazole?

  • Reversibly inhibits α4β7 interaction with MAdCAM-1 on endothelial cells
  • Reduces cAMP and attenuates protein kinases stimulation on H+/K+ ATPase
  • Binds to TNFα and prevents binding to TNF receptors
  • Induces formation of ROS, inhibits protein synthesis, and causes DNA damage (correct)

What is the mechanism of action of Sulfasalazine?

  • Binds to TNFα and prevents binding to TNF receptors
  • Broken down by intestinal bacteria into 5-ASA or mesalamine (correct)
  • Reversibly inhibits α4β7 interaction with MAdCAM-1 on endothelial cells
  • Reduces cAMP and attenuates protein kinases stimulation on H+/K+ ATPase

What is the mechanism of action of Infiximab?

<p>Binds to TNFα and prevents binding to TNF receptors (B)</p> Signup and view all the answers

What is the mechanism of action of Loperamide?

<p>Binds to μ-opioid receptor on gut wall and inhibits Ach &amp; PG release (C)</p> Signup and view all the answers

What is the mechanism of action of Vedolizumab?

<p>Reversibly inhibits α4β7 interaction with MAdCAM-1 on endothelial cells (B)</p> Signup and view all the answers

What is the mechanism of action of Infiximab?

<p>Binds to TNFα and prevents binding to TNF receptors (A)</p> Signup and view all the answers

What is the mechanism of action of Metronidazole?

<p>Prodrug that undergoes reduction to form highly active metabolite nitro-radical anion (B)</p> Signup and view all the answers

What is the mechanism of action of Sulfasalazine?

<p>Prodrug that undergoes reduction to form highly active metabolite nitro-radical anion (C)</p> Signup and view all the answers

What is the mechanism of action of Loperamide?

<p>μ-opioid receptor agonist that binds to μ-opioid receptor on gut wall and inhibits Ach &amp; PG rel. (D)</p> Signup and view all the answers

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