Seraquin Flexadin and Cosequin are glucosamine and chondroitin mixed products; available for cats, as well as dogs. The quantity of active ingredients differs between manufacturer as does the formulation. Flexivet Start combines glucosamine with much larger amounts of Chondroitin in tablet form; available for dogs only, whilst Flexivet Go is a glucosmamine only product.

All of these products can be combined with Green Lipped Mussel extract available as a pure extract (Waltham Mobility Support) or combined with glucosamine (Nutradyl), for dogs.