Denamarin for dogs and cats support and protect the health of your dog or cats liver and is the number one veterinarianrecommended liver support brand Denamarin is a nutritional supplement containing Silybin an antioxidant that improves liver function by increasing liver glutathione levels which also helps with cell repair and regeneration protecting some liver cells from cell death For dogs that do not do well with swallowing pills try Denamarin ChewablesOther products from PetCareRx