Paper II — 2023 July (Supplementary) (2019 Scheme) — Q4
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Paper II
2023 July (Supplementary) (2019 Scheme) · 100 marks · 180 min
Question
(
(a) Enumerate the drugs used in the management of peptic ulcer. Describe Triple Drug
Regimen in the drug treatment of H. Pylori Infection.
( 4 mark(s)
(b) Ondansetron. 4 mark(s)
Q48 marksShort Essays
Answer
a) Drugs for peptic ulcer, and triple therapy for H. pylori
Group
Examples
Proton pump inhibitors
Omeprazole
H2 receptor antagonists
Ranitidine
Antacids
Aluminium hydroxide
Mucosal protective agents
Sucralfate, Misoprostol
Triple drug regimen: a proton pump inhibitor plus two antibiotics (typically Clarithromycin and Amoxicillin, or Metronidazole in penicillin-allergic patients), given for 10-14 days — the PPI creates a less hostile environment for the antibiotics while directly promoting ulcer healing.
b) Ondansetron
A 5-HT3 receptor antagonist. MOA: blocks serotonin receptors peripherally (vagal afferents) and centrally at the chemoreceptor trigger zone. Uses: chemotherapy/radiotherapy-induced and post-operative nausea/vomiting. Adverse effects: headache, constipation, QT prolongation.