Onitrazole Sodium Chloride Injection is clinically recommended to be used for a maximum of 6 days, and if the course of treatment needs to be extended due to more serious conditions, it can be extended to about 2 weeks, and in this case it is best to combine with other drugs in order to shorten the duration of the medication as much as possible, and to avoid adverse consequences. Ornidazole sodium chloride injection is the main component of ornidazole, belongs to the antibiotic, clinically used to treat anaerobic bacteria caused by periodontitis, epidermal abscess, cellulitis, endometritis, vaginitis, amebic dysentery, etc., for severe amebiasis, for a continuous period of 3-6 days, for nitroimidazole drug allergy, epilepsy, chronic alcoholism, hematopoietic abnormalities of the patients prohibited the use of the drug. If the treatment of severe anaerobic infections, or the combination of gram-negative bacillus infections, the infection is still severe after 6 days, can be combined with drugs targeting gram-negative bacilli, and appropriately prolong the duration of treatment, if necessary, can refer to the results of the drug sensitivity, the use of antimicrobial drugs that are more sensitive to the infecting pathogens, and try to shorten the duration of the medication, in order to minimize the chances of resistance and the emergence of intestinal flora disorders. Clinical use of ornidazole sodium chloride injection may cause nausea, stomach pain, oral odor, headache, dizziness, rash, leukopenia and other adverse reactions, once the adverse reactions need to stop the drug in a timely manner, for patients with hepatic injury in the use of the drug, the dosing interval should be prolonged, to avoid accumulation of drugs. Ornidazole sodium chloride injection is generally used for no more than 6 days, but the specific course of treatment needs to refer to the severity of the patient’s condition, the therapeutic effect of comprehensive consideration, need to be used under the guidance of a physician, do not self-medication, so as not to cause adverse consequences.