NOW Pets Joint Support is a chewable tablet for dogs and cats formulated for healthy aging and normal joints, with glucosamine HCl, MSM, turmeric root extract, yucca, hyaluronic acid, and cayenne. Dose by the pet's weight per the label. Best thought of as everyday joint maintenance rather than a fix for an existing mobility problem — ask our staff or your veterinarian if your pet already shows signs of joint pain.