Purina Pro Plan Veterinary FortiFlora Probiotic Dog SupplementHelp promote your dog's intestinal health and balance with Purina Pro Plan Veterinary Supplements FortiFlora Powdered Canine Probiotic Supplement. This powdered probiotic supplement helps improve the stool quality in puppies and adult dogs. Our canine probiotic supplement is easy to administer by simply adding the powder to your dog's regular food. When fed with your dog's food, FortiFlora supports digestive health. Each packet contains a guaranteed