Ob-gyns weigh in. Mucinex is the brand name for guaifenesin, which is an expectorant that thins mucus. It's designed to relieve chest congestion and cough, according to the Mucinex website.
"Make it make sense" To put it plainly, Mucinex, with its active ingredient guaifenesin, is designed to thin mucus — making it easier to cough up phlegm. And some people believe that its ...
Mucinex has many products that relieve tough cold & flu symptoms. Chest congestion is caused by excess mucus. Mucinex 12-Hour contains Guaifenesin that treats the cause of that congestion by ...