ibromyalgia
"Guaifenesin really does work. I'm a 26 year old female recently diagnosed with Fibromyalgia. I have been to several doctors within the past several months because of the pain that Fibromyalgia has caused. Out of all the potentially harmful meds I've been prescribed, this is the only medication that has actually helped and to this day continues to help. I have used Mucinex for over a month without any side effects. It has also helped with Irritable Bowel Syndrome, acid reflux. I would highly recommend this to anyone suffering from a terrible disease such as Fibromyalgia."