Denamarin SAdenosylmethionine (225 mg) and Silybin A+B (24 mg) is a nutritional supplement containing the antioxidant Silybin used to improve your pet"s liver function by increasing liver glutathione levels. The tablets come in three different strengths; for cats and small dogs, for medium dogs, or for large dogs. Benefits: Supports healthy liver function by raising antioxidant levels Silybin aids digestion and absorption of nutrients from your pet"s diet No known side effects Denamarin for Medium Dogs 13 to 34 lbs: Active Ingredients (per tablet) Amount SAdenosylmethionine 225 mg Silybin A+B 24 mg Active Ingredient(s): SAdenosylmethionine, Silybin A+B What is this product used for: Denamarin for dogs and cats is a patented nutritional supplement for veterinary use in dogs and cats. Denamarin combines a pure and stabilized SAdenosylmethionine with Syylbin to provide a multifacteded approach to liver support. How this product should be used: For small dogs and cats up to 12 pounds give 1 tablet of the small size. For medium dogs 13 to 34 pounds give 1 tablet of the medium size. For large dogs 35 to 65 pounds give 1 tablet of the large size. For large dogs 66 to 120 pounds give 2 tablets of the large size, and for large dogs over 120 pounds give 3 tablets of the large size. The tablets should be given on an empty stomach at least one hour before a meal for optimal absorption, typically one hour before feeding in the morning. For owners who find it difficult to administer tablet(s) to their pets, Denamarin may be disguised in a small bite of food. The number of tablets administered may be gradually reduced, or increased, at any time at the recommendation of your veterinarian. Tablets are sensitive to moisture and extreme heat and should not be split or crumbled.