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

    What is the main function of Prucalopride?

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

    Which characteristics describe opioid agonists?

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

    Which drug category is commonly associated with causing constipation?

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

    What is the main mechanism of action of stool softeners?

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

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

    <p>Anticoagulants</p> Signup and view all the answers

    What is the role of motility stimulants in treating constipation?

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

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

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

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