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A member asked:
How long does it take for a 400mg guaifenesin pill to kick in for nasal congestion?
A doctor has provided 1 answer
Not a decongestant : Guafenesin is known as a mucolytic or expectorant, thus it thins mucus in the upper and lower respiratory tract. It will help reduce thick post nasal drip and help make a cough more productive, so mucus can be cleared.
Answered 12/5/2018
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