It just needs to be something with 100% Guaifenesin nothing else added..
please correct me if I'm wrong someone/ Atomic.
example
https://www.robitussin.ca/products/a...-mucus-phlegm/
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It just needs to be something with 100% Guaifenesin nothing else added..
please correct me if I'm wrong someone/ Atomic.
example
https://www.robitussin.ca/products/a...-mucus-phlegm/