Berberine Hydrochloride can play a role in inhibiting Escherichia coli and dysentery bacilli, and is generally used for intestinal infections, such as gastroenteritis. Patients may experience adverse reactions such as vomiting, nausea, skin rash, etc., which will generally subside on their own after stopping the drug. During the use of the drug should avoid combining with Chinese medicine containing tannin, so as not to reduce the therapeutic effect, allergic individuals and patients in the third month of pregnancy should be used with caution. It should be contraindicated in patients who are allergic to the product, suffer from hemolytic anemia and deficiency of glucose-6-phosphate dehydrogenase. If you need to use berberine hydrochloride, you should go to a regular hospital to consult a doctor, under the guidance of the doctor to use medication, and strictly prohibit unauthorized use of drugs to avoid abnormalities.