Mucinex D has guaifenesin and pseudoephedrine.
Guaifenesin is an expectorant. It helps loosen congestion in your chest and throat, making it easier to cough out through your mouth.
Pseudoephedrine is a decongestant that shrinks blood vessels in the nasal passages. Dilated blood vessels can cause nasal congestion (stuffy nose).
Mucinex DM contains guaifenesin and dextromethorphan.
Dextromethorphan is a cough suppressant. It affects the signals in the brain that trigger cough reflex.
Search for questions
Still looking for answers? Try searching for what you seek or ask your own question.
Posted 3 Sep 2009 • 1 answer
Posted 22 Mar 2011 • 2 answers
Posted 30 Jun 2011 • 2 answers
Posted 13 Jan 2014 • 2 answers
Posted 17 Feb 2015 • 1 answer