... Fibrostinks, I was wondering if you have fibromyalgia. I'm just assuming from your username anyway. Guiafenesin (sp?) has been studied as a potential medication for fibromyalgia. Its brand name is Mucinex. It also helps to thin out mucus, both post-nasal drip and cough with congestion. I think you should ask your doctor about it, because it seems like you could benefit in more... (5 replies)