And where did you find those links Omega? Just curious, as my PDR and personal pharmaceutical research have never turned up any evidence that guaifenesin is a systemic muscle relaxant of any strength, it's not used in the US or any other country for that purpose... only used as an expectorant, so where did you get these "quotes"? Btw, Robaxin is methocarbamol, NOT guaifenesin, look it up before you post incorrect info bro! Methocarbamol is a muscle relaxant but does not go by the name Robaxin... perhaps you were thinking of something like Robitussin syrup? Either way, I'd love to know where you're getting your data from, b/c some is totally wrong.