ibromyalgia
"I had intense hip pains and muscle tightness for months and started to use Mucinex because of my cold.  After taking it, I kept telling my wife that my hip is feeling better and better.  I researched for ingredient in Mucinex and found guaifenesin.  There were so many FM comments in the blog that I thought I was reading a wrong section.  Been taking 600 mg of guaifenesin  three times a day and my pains have subsided about 95% in just 2 days!  I don't like taking any kind of drugs and will experiment with a lower dosage and what works for me.  I actually stopped taking my dosage one day and the hip pain started to present itself again.  Back on guaifenesin and pain subsided dramatically!"