Paper II
2014 September (Supplementary) (2010 Scheme) · 40 marks · 120 min

Question

Read the case history and answer the following questions. Mr. Raman 32 years has developed severe epigastric pain after taking tab. Ibuprofen 400mg tds for his joint pain

  • (a) Mention two drugs used in NSAID induced gastric ulceration
  • (b) Mechanism of action of proton pump inhibitors
  • (c) Drugs for eradication of H.pylori infection
Q26 marksEssays

Answer

(a) Drugs used in NSAID-induced gastric ulceration

  • Misoprostol (PGE1 analogue — prevention and treatment)
  • Omeprazole (proton pump inhibitor)

(b) Mechanism of action of proton pump inhibitors

  • Prodrugs activated in the acidic parietal cell canaliculus
  • Irreversibly inhibit the H⁺/K⁺-ATPase (proton pump) on the parietal cell luminal membrane — the final common step of gastric acid secretion, producing profound and long-lasting suppression of both basal and stimulated acid output

(c) Drugs for H. pylori eradication

  • Standard triple therapy: PPI (e.g., Omeprazole) + Amoxicillin + Clarithromycin (7–14 days)
  • Alternative (penicillin allergy): PPI + Clarithromycin + Metronidazole

Other Years Asked


Revise MBBS
Preview