You can’t drink alcohol during and within three days after taking metronidazole. During taking metronidazole, it can inhibit the metabolism of alcohol, cause the accumulation of acetaldehyde in the body, interfere with the oxidation process of alcohol, leading to disulfiram-like reaction, the patient may have abdominal cramps, nausea and other symptoms, if not treated in time, it may cause life-threatening. So you can’t drink alcohol during taking metronidazole and within three days after taking the drug. Metronidazole is an anti-anaerobic and anti-trichomonas drug. Gastrointestinal reactions such as nausea and vomiting, neurological symptoms such as headache and dizziness, as well as urticaria, flushing and itching may also occur during the administration of the drug. This product is contraindicated in people who are allergic to metronidazole or other nitroimidazole derivatives. It is contraindicated for pregnant and lactating women, children, patients with active central nervous system diseases, blood diseases. Metronidazole should be used under doctor’s supervision, not self-medication.