The metabolic cycle of artificial oxalic metronidazole in the body is about three days or so, but since metabolism varies from person to person, it is recommended to take metronidazole for about a week before drinking alcohol. Artificial oxalic metronidazole is absorbed by the body and widely distributed in tissues and body fluids. Alcohol should not be consumed during the medication period, as it can cause the accumulation of acetaldehyde in the body and interfere with the oxidation of alcohol, which can lead to adverse reactions such as abdominal cramps, nausea, vomiting, headache, and facial flushing. The half-life of the drug in the blood is 7 to 8 hours, generally in the body around five half-life drug clearance rate of 96%, so the drug in the body basically metabolized completely need more than 40 hours or so. Subject to the influence of the individual’s physical condition and the strength of metabolism, the complete elimination time of the drug in the body may be prolonged, so it is recommended to drink alcohol after a week. The drug should be used under the supervision of a physician.