Synoquin EFA Capsule for Cats builds on the innovative Chondroprotective feed supplement, now with added Dexahan for ailing joints and mobility problems in older cats, especially helpful in animals with arthritis. Synoquin EFA Joint Supplement Capsules for Cats is a uniquely patented combination of Pharmaceutical grade Chondroitin and Glucosamine in the following amounts: Glucosamine (99% pure) 225 mg, Chondroitin Sulphate (95% pure) 175 mg, N Acetyl Glucosamine 99% pure 25mg, Ascorbic acid (Vitamin C) 25 mg, Zinc sulphate 15mg.