Montelukast and Enteritisin can be taken together for the treatment of diarrhea, but not at the same point in time. It is recommended to take them 1-2 hours apart, usually half an hour before a meal of Montelukast and half an hour after a meal of Enteritisin for the best effect. It is used for the treatment of acute and chronic gastroenteritis, diarrhea, bacterial dysentery and pediatric dyspepsia. Montmorillonite has fixed inhibitory effect on viruses and germs in the digestive tract and the toxins they produce. It has the ability to cover the mucous membrane of the digestive tract and improve the defense function of the mucous membrane barrier against attacking factors by interacting with mucus glycoproteins and repairing them qualitatively and quantitatively. The two drugs have no antagonistic composition and pharmacological effects, and when combined, they can also play a synergistic role for intestinal infections and diarrhea. However, when both are taken, they are only suitable for patients with more severe diarrhea, and if they have mild diarrhea, they should be reduced or used singly to prevent constipation.