Bifidobacterium bifidum tetragonum tablets are usually chosen to be stored under refrigeration at 2-8°C, and can usually be stored for 2-3 days at room temperature. Bifidobacterium bifidum is mainly an intestinal probiotic, active bacteria, generally need to be kept refrigerated, if the patient is stored at room temperature, it can usually only be stored for a few days. High ambient temperature will lead to inactivation of active bacteria, changes in the composition of bifidobacteria-like components, and even necrosis of probiotics, causing further dysbiosis of intestinal flora, so room temperature storage is generally kept for 2-3 days. In addition Bifidobacterium bifidum tetragonum tablets, with nausea, vomiting, diarrhea, abdominal pain, headache, palpitations, numbness, tinnitus and other uncomfortable reactions, the patient must consult with a physician before using the drug, under the guidance of the physician to use the drug, not to decide on their own to use the drug.