Its expectorant action is caused by irritative action on the bronchial mucosa.
From the en.wikipedia.org
While dextromethorphan is a cough suppressant, guaifenesin is an expectorant.
From the blogs.psychcentral.com
After she takes Mucinex, a phlegm-loosening expectorant, the whole crew is evicted.
From the usatoday.com
It possesses some antiviral and expectorant properties, but must not be used on burns.
From the timesunion.com
This suggests that one should take an expectorant as prophylactic during cold weather.
From the newscientist.com
Mucinex DM contains the expectorant guaifenesin and the cough suppressant dextromethorphan.
From the charlotteobserver.com
Ever tried to find an expectorant without some colouring in it?
From the newscientist.com
Ammonium chloride is used as an expectorant in cough medicine.
From the en.wikipedia.org
It's anti-bacterial, anti-inflammatory, expectorant and more.
From the nzherald.co.nz
More examples
A medicine promoting expectoration
A mucolytic agent or expectorant is any agent which dissolves thick mucus and is usually used to help relieve respiratory difficulties. It does so by hydrolyzing glycosaminoglycans, tending to break down/lower the viscosity of mucin-containing body secretions/components. ...
An agent or drug used to cause or induce the expulsion of phlegm from the lungs
(Expectorants) Herbs that loosen or induce expulsion of phlegm from the mucous membranes of the nasal and bronchial passages.
Medication that helps to thin mucus in the airways so it can be coughed out more easily. These medications should be taken with at least 8 ounces of water.
Herbs that help expel mucus from the lungs and throat.
An agent that increases bronchial secretions and facilitates their expulsion through coughing, spitting or sneezing.
Removes excess mucous from the lungs.
Expectorant medicine helps you to cough up phlegm.