Cardisure® Tablets for Dogs 2.5mg This is a prescription item and will be sent once a valid prescription has been received and approved by our vet. Cardisure Flavoured Tablets for Dogs 10mg Cardisure Flavoured Tablets for Dogs 10mg is for the treatment of heart failure in dogs. SIZES It is available in Singles or packs of 100 tablets. INGREDIENTS Active Ingredient Pimobendan