Vetoquinol 411574 OsteO-3,960 g comprehensive nutritional supplement for dogs with degenerative joint disease. highly palatable and formulated with vitamins, minerals, antioxidants and the following key ingredients: Glucosamine HCl, Perna Canaliculus (Green Lipped Mussel), Creatine Monohydrate, MSM (Methyl-Sulfonyl-Methane), EPA and DHA Comprehensive nutritional supplement for dogs with degenerative joint disease Highly palatable and formulated with vitamins, minerals, antioxidants and the following key ingredients: Glucosamine HCl, Perna Canaliculus (Green Lipped Mussel), Creatine Monohydrate, MSM (Methyl-Sulfonyl-Methane), EPA and DHA