Purina Fortiflora Canine Nutritional Supplement Box One (1) 30-Count Box - Purina Pro Plan Veterinary Diets Fortiflora Canine Nutritional Dog Supplement Probiotic supplement for the dietary management of puppies and adult dogs with diarrhea FortiFlora is the #1 probiotic brand prescribed by veterinarians Contains a probiotic to promote and restore normal intestinal microflora Proprietary microencapsulation process for enhanced stability