Cephalosporin means cephalosporin antibiotics, and if you drink alcohol after taking cephalosporin, you may experience a disulfiram-like reaction in about 15 to 30 minutes. However, each person has a different reaction time to the drug depending on how sensitive they are to the drug. After taking cephalosporin, you should avoid drinking alcohol or taking ethanol-containing medications for 7 to 10 days. When a severe disulfiram-like reaction occurs, you should go to the hospital immediately for emergency treatment, follow the doctor’s instructions for oxygen bed rest, observe the vital signs, measure blood pressure, pulse, respiration and so on. After taking Cephalosporin and drinking alcohol, disulfiram-like reaction will appear dizziness, low blood pressure or even shock, the drug reaction time can not be generalized, and need to go to the local hospital in time for treatment. Therefore, it is recommended not to drink alcohol when taking cephalosporin antibiotics when you are sick to avoid adverse reactions and life-threatening.