Lung & Bronchial Tonic™soothes and relaxes the respiratory system* promotes clear and free breathing* supports healthy lung and bronchial function* maintains a healthy microbial environment* Lung & Bronchial Tonic is composed of therapeutic and highly concentrated botanical extracts that support healthy lung and bronchial function. Featuring a synergistic blend of herbs traditionally utilized to address seasonal challenges, it is designed to soothe, nourish, tonify and