2 doctors weighed in:
Does Mucinex (guaifenesin) ever really expire?
2 doctors weighed in

Dr. Eric Powitzky
ENT - Head & Neck Surgery
1 doctor agrees
In brief: Yes
It loses its effectiveness and will do nothing.

In brief: Yes
It loses its effectiveness and will do nothing.
Dr. Eric Powitzky
Dr. Eric Powitzky
Thank
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