Nutri-Vet Hip and Joint Level 3 Veterinary Strength Liver Chewable for Dogs, 100-Count Liver flavor chewable tablets maintain healthy joints For dogs of all ages Provides 300-mg of green lipped mussel, 500-mg glucosamine and 500-mg msm Veterinary-formulated chewable tablet One-half chewable per 40-pound of body weight twice daily