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The mechanism of action of "Terfenadine" (Seldane) is:

1. Inhibits the secretion of histamine
2. Inhibits the action of histamine receptor
3. Activates the histamine receptor
4. Helps in the secretion of histamine

Correct answer: Inhibits the action of histamine receptor

Solution

Terfenadine works by blocking histamine H1 receptors, which prevents histamine from exerting its effects, thereby alleviating allergic symptoms.

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