Produced to support healthy, efficient airways and resistance to irritants and infections all year round. Recommended for horses that are barn or stall kept, or for those that have restricted turnout. For use in equines only. Recommended to support a healthy respiratory system in horses and ponies. Elecampane Root; Liquorice Root; Eyebright Herb; Cleaver Herb; Marshmallow Leaf; Plantain Leaf; Thyme Herb.