Tegeo is a chemotherapy drug used for the treatment of gastric cancer, and its duration is determined by different conditions, different patients, and different treatment regimens. When tegeo is applied in combination, a treatment regimen of 14 days in a row and 7 days off is used. For patients with early stage gastric cancer, it is recommended to stop after 4-6 courses of treatment. For patients with intermediate or advanced stage, with high risk of recurrence and metastasis, it is recommended to take 6-8 courses before stopping. Some patients are not suitable for the combination of drugs. When tegeo monotherapy is used to treat tumors, there are two treatment regimens available: 1. a treatment regimen of 14 days in a row and 7 days off. 2. a treatment regimen of 28 days in a row and 14 days off. According to different conditions, patients with early stage gastric cancer are recommended to stop the application after taking 4-6 courses of treatment. For patients with advanced gastric cancer, it is recommended to discontinue the drug after 6-8 courses of application, depending on the progress of the disease and according to different patients’ physical conditions.