Generally after taking cephalosporin or infusion of cephalosporin at least three days after not be able to drink, because cephalosporin and alcohol can be serious disulfiram drug reaction, that is, there will be this kind of similar to allergies, chest tightness, nausea, vomiting and so on. This situation can be serious life-threatening, so try not to drink alcohol after cephalosporin infusion, otherwise there will be a serious reaction, but this reaction is not necessarily 100%, if you have been drinking alcohol, need to be closely observed.