Ornidazole dispersible tablets for the third generation of nitroimidazole derivatives, the drug time, for different conditions have certain differences, such as the treatment of amebic dysentery should not be used before meals, need to be taken after meals, for some other conditions are not clearly defined before or after meals. Ornidazole dispersible tablets can be used to treat trichinosis, amoebiasis, Giardia flagellosis, anaerobic infections, the instructions for the use of the drug for the treatment of amoebic dysentery, give a clear description of the need to take after meals. For the treatment of acute and chronic trichinosis, other amoebiasis, and Giardia flagellosis and anaerobic infections, there is no clear indication that it should be taken before or after meals. However, because each patient has individual differences and different conditions, so do not blindly take before or after meals, should be consulted and examined by the attending physician to give a relatively good, suitable for the individual medication time, in order to protect the better performance of the drug, but also to avoid and minimize some of the side effects. Mild side effects, such as headache, drowsiness, nausea, vomiting and other gastrointestinal discomforts, can be seen when taking the drug. Individual patients may experience central nervous system disorders, or skin reactions, liver function abnormalities, taste disorders and so on. Also pay attention to the contraindications of its use, those who are allergic to nitroimidazole drugs should not be used. In addition to this, it should be used with caution in people with central nervous system disorders, liver diseases, alcoholics, patients with brain injuries, as well as pregnant and lactating women. The drug is a prescription drug and should be used in strict accordance with medical advice.