DescriptionBenylin Chesty Cough Syrup features a potent expectorant that helps to loosen and break down stubborn mucus in your chest. This means you can expel phlegm more easily, allowing you to breathe more freely.How does it work?It contains diphenhydramine hydrochloride an antihistamine that works by relieving a cough.Diphenhydramine also helps nasal secretions by preventing the natural body chemical histamine from binding to its receptors and producing a runny nose.Levomenthol works to relieve stuffiness in the nose to help make breathing easier.
