Alcohol should not be consumed 6 hours after taking cephalosporin, because the cephalosporin in human body has not finished metabolizing at this time, and if alcohol is consumed at this time, cephalosporin drugs affecting the metabolism of alcohol may lead to acetaldehyde poisoning and disulfiram reactions. Some clinical studies have shown that drinking alcohol 7-10 days before and after using cephalosporins may lead to disulfiram reactions, therefore, no alcohol or alcoholic beverages should be consumed for about 1 week after taking cephalosporins or intravenous infusion of cephalosporins. In addition, some drugs such as patchouli contain alcohol, which should not be combined with cephalosporins. Disulfiram reactions do not always occur, but when they do, they are still dangerous and may lead to anaphylaxis or even life-threatening.