The timing of drinking alcohol after taking antibiotics should be determined by the rate of metabolism of the drug. For general antibiotic medications, you can drink alcohol after three days of stopping the medication. Some drugs have a longer metabolism time, and after taking such drugs, the withdrawal time should be extended appropriately to avoid accidents as much as possible. You can drink alcohol after taking cephalosporin antibiotics for a week, and not within a week. If you drink alcohol during taking cephalosporin drugs, it will easily lead to the reaction of cephalosporin drugs with alcohol and disulfiram-like reactions, such as facial flushing, headache, nausea, vomiting, tachycardia, and mild drop in blood pressure, and some even have difficulty in breathing, etc. Seriously, liver failure will occur within a short time, and even death. Therefore, it is best not to drink alcohol after taking antibiotic drugs to avoid harm.