Oral chemotherapy drugs for gastric cancer patients are mainly oral fluorinated pyrimidines such as Siroda and Tegeo at present. Therefore, patients need to be regularly observed during the process of drug administration, especially to review the blood routine, biochemistry and electrocardiogram once a week. In the process of medication, antiemetic and hepatoprotective drugs can be applied at the same time to prevent damage to liver function, and attention should also be paid to the observation of immune function, and immune-enhancing drugs can be taken at the same time. Its drugs have a greater impact on the flora of the gastrointestinal tract, so you can also take oral flora-regulating drugs at the same time to regulate the function of the intestinal tract.