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Question

Question

Answer 1

Answer #1

Answer :

a. True.

Expectorants are drugs that loosen and clear mucus and phlegm from respiratory tract.

MECHANISM OF ACTION :

Reflex stimulation :

1. Agent causes irritation of the GI tract.

2. Loosening and thining of respiratory tract secretion occur in response to this irritation.

Example; guaifenesin.

Direct stimulation :

The secretory glands are stimulated directly to increase their production of respiratory tract fluids.

Example; iodine-containing products such as iodinated glycerol and potassium iodide.

Answer 2

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