Synulox Bolus 500 mg film-coated tablets are presented as large, pink, film-coated, bolus-shaped tablets, with a break line on one side and 'SYNULOX' engraved on the other. Each bolus contains 100 mg clavulanic acid as potassium clavulanate and 400 mg amoxicillin as Amoxicillin trihydrate.