Cephalosporin is a commonly used antibiotic in clinical practice, and cephalosporin has a good effect on many inflammatory infections. The reason is that coffee contains caffeine and drinking coffee after cephalosporin may affect the therapeutic effect of cephalosporin, although there are no obvious side effects, it has a greater impact on the efficacy of the drug and may weaken the therapeutic effect of cephalosporin. If you have to drink coffee, you can take coffee at least 1-2 hours after taking cephalosporin. The main effect of coffee is to stimulate the nerves, and the simultaneous application with other drugs or antibiotics may lead to adverse reactions. Therefore, it is better for patients who have had cephalosporin to avoid coffee in their daily life. They should eat a light diet, eat more green vegetables, fruits or coarse grains, pay attention to rest, avoid smoking and drinking alcohol, etc.