Only Prostora™ Max is made with Bifidalis™, a patent pending, clinically proven strain of a live and active culture, to help nutritionally maintain your dog's digestive balance. Beneficial bacteria, like those found in Prostora™ Max, promote the health of many vital body functions, including healthy digestion. This formula is available only through your veterinarian. Benefits of Prostora™ Max A dietary supplement that: Nutritionally manages dogs with diarrhea. Promotes a strong, healthy digestive system for overall health and well-being. Promotes a healthy microflora balance during stressful times. Is gentle and comes in a convenient, tasty treat form that your dog will love.