Mucinex is a brand name for guaifenesin, an expectorant that thins mucus. People typically use expectorants like Mucinex when they have chest congestion to help thin mucus in the air passages to make ...
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.
Guaifenesin 50mg; per packet; grape flavor; contains (phenylalanine 0.6mg, magnesium 6mg) per packet. Empty entire contents of packet onto tongue and swallow. Do not chew. <4yrs: do not use. 4 ...