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NEET levelSingle correct optionDifficulty 1 of 3el203

Ranitidine is used to reduce acidity in the stomach. It acts by

  1. Ablocking the histamine H2 receptors in the stomach wall so that less acid is released
  2. Bneutralising the acid already present with a base
  3. Ckilling bacteria in the gut
  4. Dblocking the histamine H1 receptors involved in allergy

Answer: A

Ranitidine (like cimetidine) is an H2-receptor antagonist. It prevents histamine from stimulating the stomach wall to release acid. It does not neutralise acid chemically.
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