This is
Guaifenex LA Extended Release Tablet.
What is
guaifenesin? 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.
Here is the image of your pill
http://www.hfm.staywellsolutionsonli...2/guai002f.jpg
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