Prescription only Kesium chewable tablets 500 mg/125 mg (625 mg) for dogs are a broad-spectrum antibiotic active against a wide range of bacterial infections in dogs. Kesium can be given by hand or mixed with your dog's food. Each tablet contains: Amoxicillin (as Amoxicillin trihydrate) 500 mg, Clavulanic acid (as Potassium clavulanate) 125 mg Package size: Carton box containing 16 blister packs with 6 tablets each