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JEE Advanced levelSingle correct optionDifficulty 3 of 3el100

A person has hay fever and acid indigestion. Which prescription is rational?

ABrompheniramine for the hay fever and ranitidine for the acidity
BBrompheniramine for both conditions
CRanitidine for the hay fever and brompheniramine for the acidity
DRanitidine for both conditions

Answer: A

Hay fever involves H1 receptors, blocked by brompheniramine, and acid secretion involves H2 receptors, blocked by ranitidine. Neither drug acts on the other receptor type.

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