This registry is a place to share positive or negative side effects of using Mucinex DM. If you directly experienced a side effect while using Mucinex DM, then we encourage you to enter it here. Please note that entries here are the experiences of individual users, and in no way means that you or anyone else will experience the same side effect, since the same medication affects people in different ways. Please always contact your physician.
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September 27th
2008
1:31 PM
I started taking this last week (7 days ago) and I seem to be waking up early morning with severe nausea and have vomited a few times. If I manage to sleep thru the morning then Im ok. Its not happened every day but frequently. I can't be sure its a "side effect" or not but the reason I mention it is because the first poster said he had nausea and I am in fact experiencing it, but I am taking other medications with the Mucinex DM
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