Types of Laxatives Overview
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Questions and Answers

Which drug has less CNS effect than conventional opiates due to its inability to cross the blood-brain barrier?

  • Codeine
  • Atropine
  • Loperamide (correct)
  • Diphenoxylate

What are the common CNS effects that can occur at higher than recommended doses of Loperamide and Diphenoxylate?

  • Sedation (correct)
  • Muscle twitching
  • Hallucinations
  • Anxiety

Which special category drug is a synthetic analogue of somatostatin and is mainly used to treat symptoms of GI endocrine tumors?

  • Codeine
  • Diphenoxylate
  • Octreotide (correct)
  • Loperamide

What are the common adverse effects of anti-cholinergics when used at doses sufficient to inhibit diarrhea?

<p>Dry mouth and tachycardia (B)</p> Signup and view all the answers

Why is codeine mentioned as a drug that can be used for its antidiarrheal effects?

<p>It acts as a pro-drug for morphine (C)</p> Signup and view all the answers

Which type of laxatives result in increased stool liquidity due to an increase in faecal fluid?

<p>Sorbitol (B)</p> Signup and view all the answers

What is the main function of Prucalopride?

<p>Stimulates colonic smooth muscle contraction (A)</p> Signup and view all the answers

Which characteristics describe opioid agonists?

<p>Significantly constipating effects (C)</p> Signup and view all the answers

What is the main concern with using antidiarrhoeal agents in high fever cases?

<p>Can worsen the condition (A)</p> Signup and view all the answers

Why should Magnesium oxide be used with caution in patients with renal impairment?

<p>It may lead to hypermagnesemia (C)</p> Signup and view all the answers

What is the main function of Sorbitol and Lactulose?

<p>Treat chronic constipation and may cause severe flatus and cramps (A)</p> Signup and view all the answers

What is the primary function of bulk-forming laxatives?

<p>Absorbing water to form bulky gel in the colon (D)</p> Signup and view all the answers

Which drug category is commonly associated with causing constipation?

<p>Opioid analgesics (C)</p> Signup and view all the answers

What is the main mechanism of action of stool softeners?

<p>Softening the stool material (D)</p> Signup and view all the answers

Which drug category is NOT mentioned in the text as a cause of constipation?

<p>Anticoagulants (C)</p> Signup and view all the answers

What is the role of motility stimulants in treating constipation?

<p>Increasing peristalsis (D)</p> Signup and view all the answers

Which type of laxative is most likely to cause bloating of the abdomen?

<p>Bulk-forming laxatives (D)</p> Signup and view all the answers

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