📌 Introduction
Laxatives and antidiarrheal drugs are important GI drugs used to manage constipation and diarrhea. This topic is frequently asked in GPAT, DSSSB, and other pharmacy exams.
📝 MCQs
1. Bulk-forming laxatives act by:
A) Increasing motility
B) Absorbing water and increasing stool bulk
C) Blocking sodium channels
D) Reducing secretion
✔ Answer: B
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2. Example of bulk-forming laxative:
A) Senna
B) Lactulose
C) Psyllium
D) Loperamide
✔ Answer: C
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3. Osmotic laxative works by:
A) Increasing enzyme activity
B) Drawing water into intestine
C) Blocking receptors
D) Reducing motility
✔ Answer: B
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4. Example of osmotic laxative:
A) Magnesium hydroxide
B) Senna
C) Loperamide
D) Codeine
✔ Answer: A
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5. Stimulant laxatives act by:
A) Decreasing motility
B) Increasing intestinal motility
C) Blocking secretion
D) Increasing absorption
✔ Answer: B
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6. Example of stimulant laxative:
A) Senna
B) Psyllium
C) Kaolin
D) ORS
✔ Answer: A
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7. Stool softener example:
A) Docusate sodium
B) Senna
C) Loperamide
D) Magnesium hydroxide
✔ Answer: A
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8. Laxatives are mainly used for:
A) Diarrhea
B) Constipation
C) Infection
D) Fever
✔ Answer: B
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9. Common side effect of laxatives:
A) Hypertension
B) Diarrhea
C) Fever
D) Cough
✔ Answer: B
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10. Antidiarrheal drugs are used for:
A) Constipation
B) Diarrhea
C) Pain
D) Fever
✔ Answer: B
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11. Loperamide acts by:
A) Increasing secretion
B) Reducing motility
C) Increasing motility
D) Blocking enzymes
✔ Answer: B
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12. Loperamide belongs to:
A) Osmotic laxative
B) Antimotility drug
C) Antibiotic
D) Vitamin
✔ Answer: B
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13. Adsorbents act by:
A) Increasing absorption
B) Binding toxins
C) Increasing motility
D) Reducing enzyme activity
✔ Answer: B
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14. Example of adsorbent:
A) Kaolin
B) Senna
C) Lactulose
D) Docusate
✔ Answer: A
—
15. Antisecretory drug example:
A) Bismuth subsalicylate
B) Psyllium
C) Senna
D) Lidocaine
✔ Answer: A
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16. ORS is used for:
A) Increasing motility
B) Restoring fluids and electrolytes
C) Reducing pain
D) Killing bacteria
✔ Answer: B
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17. Most important treatment in diarrhea:
A) Antibiotics
B) ORS
C) Vitamins
D) Insulin
✔ Answer: B
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18. Side effect of antidiarrheal drugs:
A) Constipation
B) Fever
C) Pain
D) Infection
✔ Answer: A
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19. Laxatives should not be overused because:
A) Addiction risk
B) Electrolyte imbalance
C) Hypertension
D) Diabetes
✔ Answer: B
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20. Which increases stool bulk?
A) Psyllium
B) Loperamide
C) Kaolin
D) Bismuth
✔ Answer: A
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21. Which slows intestinal movement?
A) Loperamide
B) Senna
C) Lactulose
D) Psyllium
✔ Answer: A
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22. Which is osmotic laxative?
A) Lactulose
B) Senna
C) Loperamide
D) Kaolin
✔ Answer: A
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23. Which drug causes abdominal cramps?
A) Laxatives
B) Vitamins
C) Insulin
D) Antibiotics
✔ Answer: A
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24. Which drug binds toxins?
A) Kaolin
B) Senna
C) Lactulose
D) Psyllium
✔ Answer: A
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25. Which drug reduces secretion?
A) Bismuth
B) Senna
C) Psyllium
D) Lactulose
✔ Answer: A
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26. Which drug is stool softener?
A) Docusate
B) Senna
C) Loperamide
D) Kaolin
✔ Answer: A
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27. Which condition uses laxatives?
A) Constipation
B) Diarrhea
C) Fever
D) Infection
✔ Answer: A
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28. Which condition uses antidiarrheals?
A) Constipation
B) Diarrhea
C) Pain
D) Fever
✔ Answer: B
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29. Which drug improves hydration?
A) ORS
B) Senna
C) Psyllium
D) Kaolin
✔ Answer: A
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30. Best management of diarrhea:
A) Laxatives
B) ORS
C) Insulin
D) Antibiotics
✔ Answer: B
🎯 Conclusion
These MCQs will help you revise laxatives and antidiarrheal drugs effectively for exams.
👉 Read full notes here: https://pharmacymcq.in/laxatives-and-antidiarrheal-drugs-classification-mechanism-uses/