Cosequin® DS Plus MSM & Omega-3’s contains FCHG49® Glucosamine Hydrochloride, TRH122® Sodium Chondroitin Sulfate, MSM (Methylsulfonylmethane), and Omega-3’s. The combination of Glucosamine, Chondroitin Sulfate and MSM helps maintain joint cartilage and connective tissue. Each chewable tablet also contains omega-3 fatty acids which supports healthy joints.