Protect your cat every day with viyo reinforces senior cat prebiotic drink viyo reinforces is a delicious and healthy low calorie drink developed by veterinarians for pets it contains prebiotic fibres that nourish the intestinal flora thus helping to strengthen the natural immune system of your cat youll notice that your cats digestion has improved through a shinier coat firmer stools and increased vitality depending on your cats health the results of using viyo reinforces will be vis