The two drugs, Bifidobacterium bifidum and Lactobacillus tablets, do not conflict and can be taken at the same time. However, the two drugs have similar effects, and it is recommended to refer to your doctor’s opinion whether you need to take them at the same time. Bifidobacterium bifidum is used for the treatment of diarrhea caused by intestinal flora imbalance, diarrhea and constipation for which antibiotic treatment is ineffective. The use of the drug should be noted that the drug is sensitive to penicillin, clindamycin, vanguardin and so on, it is recommended to stagger the time to take; the drug is suitable for refrigeration storage. Adverse reactions and contraindications of bifidobacteria are not clear. Lactobacillus tablets are indicated for abnormal fermentation in the intestines, dyspepsia, enteritis and pediatric diarrhea. Adverse reactions and contraindications to this drug are not known at this time. However, it should be noted that the drug is contraindicated in patients who are allergic to it, and caution is recommended in allergic conditions. In case of overdose or serious adverse reactions, you should go to the hospital immediately. Both of the above drugs should be used under the guidance of a doctor and should not be used without authorization.