Your friend is way off.
You have a 600mg Mucinex Extended Release Tablet
GUAIFENESIN (Humibid®, Mucinexâ¢, Robitussin®, and others) helps treat coughs caused by colds or the flu. It loosens phlegm or mucus in the lungs. It is not intended to treat chronic cough caused by smoking, asthma, emphysema, heart failure, or problems in which there is a large amount of phlegm.
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http://www.wallsrx.com/services/cpid...photo=muci600t
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