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Yea it just makes your sputum more thinner so you can hock loogies easier. Most people don't have that issue. It does very little for your runny nose. Maybe 1st gen anti histamine if you want to sleep and 2nd if you want to stay awake for runny nose. Try a suppressant like dextromethorphan for a cough. That is the tussin stuff.That's the ingredient. Guaifenesin.
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