Cephalosporin may cause some side effects, but mainly allergic reactions or gastrointestinal discomfort after taking cephalosporin. However, when taken in normal doses, it will not cause drowsiness in patients. The drowsiness of patients after taking cephalosporin may be related to the disease itself, such as drowsiness and fatigue during fever and cold. Patients who have taken some other drugs, such as aminoglutethimide, are prone to drowsiness. Patients drowsiness after taking cephalosporin, or consider that it is related to other factors, this symptom if not particularly serious, patients are advised to observe can. However, if the symptoms are serious, you must promptly consult a hospital for examination, and make sure to clarify whether it is caused by cephalosporin allergy, and give desensitization treatment when necessary.