Application of decarbonated ursodesoxycholic acid berberine salt in preparation of medicine for preventing and/or treating digestive tract inflammation

The invention provides application of decarbonated ursodesoxycholic acid berberine salt in preparation of a medicine for preventing and/or treating digestive tract inflammation, and belongs to the field of pharmacy. It is found for the first time that the decarbonated ursodesoxycholic acid berberine salt can effectively treat ulcerative colitis and chemotherapy-related diarrhea, and the treatment effect is remarkably superior to that of a compound HTD1801 with the same dosage; meanwhile, the invention also finds that the treatment effect of the decarbonated ursodesoxycholic acid berberine salt on ulcerative colitis and chemotherapy-related diarrhea is obviously superior to that of decarbonated ursodesoxycholic acid or berberine (namely berberine hydrochloride) with the same dosage which is independently used; according to the invention, the decarbonated ursodesoxycholic acid and berberine are combined together to form the decarbonated ursodesoxycholic acid berberine hydrochloride salt, and the decarbonated ur