Helps loosen phlegm (mucus) and thin bronchial secretions to rid the bronchial passageways of bothersome mucus and make coughs more productive. Temporarily relieves nasal congestion due to the common cold hay fever or other respiratory allergies. Promotes nasal and/or sinus drainage. Temporarily relieves sinus congestion and pressure. Relieves nasal and sinus congestion. Thins and loosens mucus. Alleviates chest congestion.