Dietary Supplement This combination of herbs has been used historically to help relieve irritation in the respiratory tract, lungs and bronchial system. This is an aid for emphysema as well as other bronchial and lung congestions such as bronchitis, asthma, tuberculosis, etc. This formula is extremely valuable in strengthening and healing the entire respiratory tract. It promotes the discharge of mucous secretions from the bronchiopulmonary passages. Thus, it helps to clear the oxygen passageways. All encapsulated products are in a pure 100% vegetable based capsule.