Generally, montelukast is taken three times a day, and it has a good therapeutic effect on acute and chronic diarrhea in adults and children. Montmorillonite is a widely used astringent in diarrhea, mainly for the treatment of acute and chronic diarrhea, with a laminar structure and non-uniform charge distribution, which has a fixing and inhibiting effect on viruses, bacteria and toxins produced in the digestive tract. In addition to this, it has the ability to cover the mucous membrane of the GI tract and is able to improve the defense of the mucosal barrier against attack factors by combining with mucus glycoproteins. The drug acts only in the gastrointestinal tract and does not enter the blood circulation, so the systemic systemic adverse reactions are small. The more common adverse reactions are constipation and constipation, etc. It should be noted that the use of montelukast for acute diarrhea should be accompanied by correction of dehydration to prevent dehydration caused by diarrhea. In conclusion, montelukast is a drug for diarrhea treatment, and the first dose should be doubled when used for acute diarrhea treatment. Montelukast should be stirred into a suspension and drunk immediately, and taken between meals. In addition, to avoid constipation caused by montelukast, you can adjust the ratio or take it together with probiotics.