Pharmacology HESI Practice Related

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How does omeprazole work in treating a peptic ulcer?

  • A. Increasing the production of gastric acid
  • B. Neutralizing stomach acid
  • C. Coating the stomach lining
  • D. Reducing gastric acid secretion
Correct Answer: D

Rationale: Omeprazole is a proton pump inhibitor that works by reducing gastric acid secretion. By inhibiting the enzyme responsible for pumping acid into the stomach, omeprazole helps decrease the acidity level in the stomach, providing relief from peptic ulcers. Option A is incorrect because omeprazole does not increase gastric acid production; instead, it decreases it. Option B is incorrect as omeprazole does not neutralize existing stomach acid but rather reduces its secretion. Option C is incorrect as omeprazole does not coat the stomach lining but acts on reducing acid secretion.