The generic name of Sirenkang is Bifidobacterium Bifidum 4-Live Bacteria Tablets; the generic name of Peifikang is Bifidobacterium Bifidum Triple Live Bacteria Capsules, and there are differences in the ingredients, treatment diseases and precautions of the two drugs. 1. Different ingredients: Bifidobacterium quadruple antibiotic tablets include Bifidobacterium infantis, Lactobacillus acidophilus, Bacillus cereus and Enterococcus faecalis; Bifidobacterium triple antibiotic capsules include Bifidobacterium longum, Lactobacillus acidophilus and Enterococcus faecalis, and so on. 2. Different treatment diseases: Bifidobacterium 4-Liners Tablets are used for diarrhea, constipation and functional dyspepsia induced by intestinal flora imbalance; Bifidobacterium 3-Liners Capsules are used for acute and chronic diarrhea, abdominal distension and dyspepsia induced by intestinal flora imbalance. 3. Different precautions: Both drugs are not recommended to be combined with antibiotics such as chloramphenicol, erythromycin, penicillin and cephalosporin; also not to be combined with tannins, tinctures, and activated charcoal and other drugs that can inhibit adsorption and kill live bacteria. Bifidobacterium triplex capsules need to pay attention to refrigerated storage, it is recommended to use cold boiled water or warm boiled water delivery. At present, the adverse reactions of these two drugs are not clear; allergy to the ingredients of the two drugs is prohibited, allergy with caution. Bifidobacterium bifidum quadruple live bacterial tablets and Bifidobacterium bifidum triple live bacterial capsules have some risks, it is recommended that patients need to get the guidance of specialists, and follow the doctor’s instructions to standardize the use of the drug.