A member asked:

I have a bad sinus infection took 2 suds fed at 4am n it is 8:30 am now want 2 now take my mucinex (guaifenesin) d instead is that ok thanks?

2 doctors weighed in across 2 answers
Dr. Christopher Conti answered

Specializes in Emergency Medicine

SINUS WOES: Unfortunately no... Mucinex-D also contains Sudafed, which is generally taken every 12-hours.

Answered 2/11/2016

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Dr. Charles Turck answered

Specializes in Pharmacology

No: Sudafed and Mucinex (guaifenesin) D both have the same drug in them, so taking them both would may have you taking a higher dose than is healthy, especially if you have other conditions like high blood pressure. It wouldn’t be the best idea. The best bet, in future, is to look at the ingredient list on the backs of the boxes as a first step and make sure they do not have the same drug in them. (In this case, th

Answered 3/13/2020

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