Probiotics adults can take about 2 packets a day. Depending on the type of probiotic, its function and dosage, the specific daily dosage should be taken according to the doctor’s prescription. Probiotics refer to strains of bacteria used in the intestinal tract to regulate the balance of flora, such as lactobacillus, bifidobacterium bifidum bacillus subtilis, bacillus cereus, and so on. Probiotics can synthesize digestive enzymes, promote intestinal nutrient absorption, and help maintain intestinal microecological balance; they can also relieve constipation, diarrhea, bloating, nausea, vomiting, loss of appetite and other indigestion symptoms. It should be noted that probiotics do not tolerate high temperatures, should pay attention to the brewing water temperature should not exceed 40 degrees, so as not to affect the efficacy of the drug. Probiotics should not be taken with antibiotic drugs such as clarithromycin, so as not to be inactivated by antibiotics, and thus unable to play a role in the efficacy of the drug. Probiotics should be taken under the guidance of a doctor and should not be used without authorization.