Emmunition is chemically known as Loperamide Hydrochloride and is taken by mouth. The starting dose for adults is 2 to 4mg, 2 to 12mg per day, and 4 to 8mg per day is given for maintenance treatment after a significant effect 2mg for children over 5 years of age, and the dose is adjusted thereafter according to stools. Adults should not exceed 16mg daily and children should not exceed 3mg/20kg daily. Loperamide hydrochloride is a commonly used antidiarrheal agent for diarrheal symptoms due to various causes. It is mainly used to inhibit intestinal peristalsis and secretion by agonizing the opioid receptors in the intestine. The correct use of the drug, in addition to dosage also need to strictly grasp its indications. For bacillary dysentery, ulcerative colitis and other diseases, the drug adverse reactions are mild, allergies such as skin rashes, digestive symptoms such as dry mouth, bloating, loss of appetite, gastrointestinal spasms, nausea, vomiting, constipation, as well as dizziness, headache, fatigue and so on. It is contraindicated in patients with acute bacillary dysentery with high fever or septicemia, acute ulcerative colitis, bacterial enteritis, pseudomembranous enteritis, intestinal obstruction, megacolon and other diseases. Contraindicated in children under 2 years of age. Use with caution in cases of severe hepatic impairment. Loperamide Hydrochloride is a drug that should be used under medical supervision.