Due to the different conditions of patients, different age stage, under the guidance of the doctor, so the tablets will be different, usually divided into the usual amount of adults and pediatrics. 1. Adult usual dose: with intestinal amoebiasis, 0.4-0.6g once, 3 times a day, Giardia, 0.4g once, 3 times a day, Saccharomyces cerevisiae, 0.2g once, 2 times a day, trichomoniasis, 0.2g once, 4 times a day, anaerobic infections, 0.6-1.2g per day, divided into 3 times. 2. Usual dosage for pediatric patients: with amebiasis, 35-50mg/kg per day by weight, divided into 3 oral doses, anaerobic infections, oral 20-50mg/kg per day by weight, Giardia, 15-25mg/kg per day by weight, divided into 3 oral doses. The use of the drug may cause adverse reactions such as nausea, vomiting, loss of appetite, abdominal cramps, and is contraindicated in those who are allergic to the product. It is contraindicated for those with active central nervous system disorders and blood disorders. It is recommended that patients use the drug under the guidance of a doctor and in strict compliance with the doctor’s instructions, and should not blindly use the drug or change the dose of the drug without authorization, so as not to cause adverse effects on the body.