Pro-Equine Airway 500ml, liquid supplement for horses, contains sunflower oil, echinacea, garlic, eucalyptus, marjoram . Fast-working supplement to support equine joint mobility & cartilage health. A powerful blend to encourage full capacity lung function in horses and to support a healthy immune system. Airway is particularly recommended for horses exposed to a dusty environment or even slightly dusty forage.Contains no banned substances so can be used while competing.