Semicarb, also known as montelukast, is an adsorbent antidiarrheal agent used for the treatment of acute and chronic diarrhea in adults and children, as well as for the adjunctive treatment of painful symptoms caused by gastric and duodenal esophageal diseases, but it does not belong to the class of antispasmodic and analgesic drugs. Semicarb should be taken with warm water, 20-30ml, not too much. Avoid eating and taking other medications at the same time, usually more than half an hour apart. During the medication period, you should pay attention to hydration to avoid dehydration and electrolyte disorders, and avoid long-term use of medication that may lead to constipation. It is best to take the medication under the guidance of a doctor, pay attention to a light diet and eat less and more meals.