Quiz: Test Your Medicine Knowledge

The correct answer is A (Zinc)
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Oral Zinc lozenges may reduce the duration and severity of the common cold, when started within 24 hours, and taken for less than two weeks. Intranasal Zinc has been linked to a severe and permanent loss of smell and should not be used.
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For most people, Vitamin C does not prevent cold and only slightly reduces their length and severity.

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