Chemotherapeutic drugs are anti-tumor treatment drugs. The following oral chemotherapeutic drugs are more commonly used clinically: 1. Capecitabine, mainly used for the treatment of colon cancer, rectal cancer, gastric cancer, breast cancer, etc. 2. Tegeo capsules, mainly used for the treatment of gastric cancer, few intestinal cancers, lung cancer patients can also be considered for application. 3. VP-16 capsules, mainly used for the treatment of small cell lung cancer clinically. 4, Lomustine, also known as cycloheximide, is mainly used for the treatment of chronic granulocytic leukemia. 5.Lomustine, also known as cycloheximide, is mainly used for the treatment of lung cancer, malignant lymphoma, etc. 6.Somustine, also known as metacyclonidine, is mainly used for the treatment of malignant lymphoma, lung cancer, brain tumor, etc.