Capecitabine is a common chemotherapeutic drug, generally used for postoperative chemotherapy or preoperative neoadjuvant therapy for gastrointestinal tumors. Capecitabine is divided into domestic drugs and imported drugs, domestic drugs are generally about 100 yuan a box, and imported drugs are generally about three to four hundred dollars a box. Imported drugs have a better therapeutic effect, but domestic drugs can also achieve about 70% of the therapeutic effect of imported drugs. During the use of the drug should pay attention to, limbs avoid contact with metal, avoid contact with cool water.