Siliancon, also known as Bifidobacterium tetradrug, is a live bacteria preparation, the main active ingredients include Bifidobacterium, Lactobacillus, Enterococcus and Bacillus cereus tetradrug. This drug mainly has the effect of regulating the flora, can directly supplement the normal physiological bacteria of human body, form a biological barrier in the intestine, inhibit certain pathogenic bacteria in the intestine, at the same time can promote intestinal peristalsis, adjust the balance of intestinal flora, can stimulate the immunity of the body, participate in the synthesis of vitamins, and can promote the digestion and absorption of nutrients. Based on the pharmacological effects, this drug is mainly used to treat diarrhea, constipation and functional dyspepsia associated with intestinal flora imbalance, and this drug usually needs to be stored under refrigeration, it is a vacuum package, and should be taken as soon as possible after opening the bag. In short, Siliancon can mainly regulate the gastrointestinal flora and improve the function of the gastrointestinal tract.