The generic name is berberine hydrochloride, there is no clear regulation on how long to take berberine hydrochloride for chronic enteritis, but clinically it is recommended to take about 1 week, and the specific use of medication needs to strictly follow the doctor’s instructions. Berberine hydrochloride belongs to the intestinal anti-infective drugs, clinically used in the treatment of gastritis, enteritis and other intestinal infections. Hemolytic anemia, glucose-6-phosphate dehydrogenase deficiency and allergy to berberine hydrochloride drug composition is prohibited. It is used with caution in the first trimester of pregnancy and in allergic individuals. Adverse reactions such as nausea, rash, medicinal fever and vomiting may occur with current administration of berberine hydrochloride. People with chronic enteritis can take berberine hydrochloride for about 1 week as prescribed by the doctor, and generally do not need to take the drug for a long time. Chronic enteritis needs to be treated according to the cause of the disease, pay attention to the eating habits in life, and prevent from diet.