
Benylin Phlegm Cough is a non-drowsy formula that works deep down to help make your cough more productive.
Active ingredient guaifenesin helps to thin and loosen mucus in your chest, making it easier to cough up. The levomenthol provides a soothing sensation.
Phlegm coughs are caused by a build-up of phlegm in the lungs and on the chest. The cough mechanism kicks in to try and get rid of this excess phlegm.