GNC Pets Ultra Mega Hip & Joint Health Premium Formula for Senior Dogs (Savory Beef) - 240 Chewable Tablets Provides advanced support for joint cushioning and mobility to help ease joint pain in your dog Delivers 750mg of glucosamine, 600mg of chondroitin and 500mg of MSM Supplemented with omega-3 fatty acids, turmeric and boswellia to promote healthy joint function Active ingredients (per 2 chewable tablets): glucosamine hydrochloride (from shellfish) 750mg, chondroitin sulfate (from bovine cartilage) 600mg, methylsulfonylmethane (MSM) 500mg, ascorbic acid (source of vitamin C) 100mg, omega-3 fatty acids (from fish oil) 27mg, boswellia serrata 25mg, turmeric 25mg, vitamin E 20 IU, zinc 15mg, hyaluronic acid 5mg, manganese 5mg and copper 1mg Feed 1 tablet to dogs weighing up to 10 lb.; feed 2 tablets to dogs weighing 11  50 lb.; feed 4 tablets to dogs weighing more than 50 lb.