Purina Pro Plan Veterinary Joint Care Joint Supplement for Large Breed Dogs Hip and Joint Supplement - 5.29 oz. PouchCanine Joint Supplement for Large Dogs supporting mobility and healthy cartilage and joints Large dog supplement featuring glucosamine, collagen, chondroitin sulfate and hyaluronic acid to help maintain healthy cartilage and joints Dog hip and joint supplement large breed chews formulated to support mobility and normal daily activities such as walking, climbing and general movements Contains Omega 3 fatty acids for dogs from cod liver oil to support