The reaction between alcohol and cephalosporin is called disulfiram reaction, which is more common after taking cephalosporin within 3 days and drinking alcohol at the same time. When a disulfiram reaction occurs, the patient’s condition is very dangerous, and early on the patient may experience flushing and rapid heart rate, along with nausea. If the condition worsens, there may be panic, chest tightness, nausea, vomiting, and even lowered blood pressure and shock, and the patient needs to be taken to the hospital immediately for resuscitation, and if resuscitation is not timely, death may occur. It can also be seen in delayed reactions, that is, within two weeks after taking cephalosporin, or even longer after drinking alcohol, there may be disulfiram reactions. Therefore, prevention of disulfiram reaction is important, and once you have taken cephalosporin, you must not drink alcohol again.