Yes. My dr had been really pushing it but most of the research I've done says it is not effective & you feel much worse for some time. I'm going to pass on this one. Below is Wikipedia link but there is a lot more info. online. https://en.m.wikipedia.org/wiki/Guaifenesin_pro...

I've never heard of it being a treatment for fibro either..isn't it supposed to help you expell d mucus...?

Tess, thank you so much for your input. I feel same way but have dr who continues to push for it.

I think it is a sham treatment - they say it makes you worse, then you get better. I tried it and quit. Did nothing for me except cause extreme pain

Very interesting...I just checked d link u provided us...wow..well..I'm on a homeopathic treatment as well as reg presc meds, anyhow, my homeopathic doctor has me off caffeine, chocolate, and mint...and so after reading d info on this link it all makes sense... I had no idea y she had given me these restrictions...thanks Debbie :)