Rx Vitamins MegaFlex is a joint powder supplement for dogs and cats designed to support mobility, flexibility, and joint function. This formula includes MSM powder, glucosamine, sea cucumber, and vitamin C to help maintain healthy cartilage and connective tissue. Suitable for pets of all sizes, it serves as a joint supplement for small dogs, a joint supplement for large dogs, and a convenient option for cats. MegaFlex may be used as part of a routine for hip and joint supplement dogs as well as cats, especially for those experiencing stiffness or age-related changes. The easy-to-dose powder makes it a practical choice for daily use. It complements existing dog supplements for joint and arthritis, and supports overall joint care for dogs. Whether for general maintenance or additional joint support, MegaFlex offers a flexible way to help maintain joint health in dogs and cats.