Primadophilus bifidus is an enteric coated, high potency probiotic product, in a convenient once daily dose. Bifidus is especially designed for middle aged and senior adults. It contains specially selected strains of freeze-dried microorganisms. Our product is kept refrigerated throughout the manufacturing process. Primadophilus Bifidus features a blend of Bifidobacterium breve, Bifidobacterium longum, Lactobacillus rhamnosus & Lactobacillus acidophilus specifically designed for middle-aged and senior adults. These Bifidobacteria and Lactobacilli strains are essential to maintaining healthy intestinal flora. Under normal conditions, trillions of bacteria exist in the intestines. As part of the body's defenses, they help maintain good health by preventing harmful microorganisms from infiltrating the body. Medications taken to combat illness or infection can reduce the number of beneficial bacteria as an unwanted side effect. To maintain the healthy balance, add Primadophilus Bifidus to your daily health regimen. 100% Intestinal Release Difference: Each Primadophilus Bifidus capsule has a proprietary enteric coating that completely withstands stomach acid so it can release its full potency into the intestinal tract. Without this feature, up to 95% of the active cultures could be lost in the stomach.