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: Common cold. Hay fever. Upper respiratory allergies. Temporarily restores freer breathing through the nose. Promotes nasal and/or sinus drainage. Temporarily relieves sinus congestion and pressure. Unique bi-layer tablet with an immediate-release layer and extended-release layer. It provides 12-hour relief. Product Benefits.