PURINA PROPLAN VETERINARY DIETS Feline FortiFlora is a probiotic supplement for cats of all ages, including kittens. It contains live "friendly" bacteria that help promote intestinal health and balance, and a healthy immune system. Each sachet contains guaranteed levels of a unique probiotic strain. It is highly palatable and can be easily sprinkled on the food. FORTIFLORA can be useful to help manage digestive upsets or poor stool quality caused by an imbalance in the intestinal bacteria. This can occur due to illness, stress, antibiotic therapy, dietary changes or just due to older age. One sachet is given daily and although improvements in signs of digestive upset may be seen within a few days, for maximum effect FORTIFLORA should be fed for 30 days.