Oral chemotherapy drugs include Capecitabine, Tegio, Etoposide, etc. It is recommended that patients follow the doctor’s instructions to use the drugs. 1. Capecitabine: Capecitabine is an oral chemotherapeutic drug, which can be converted into fluorouracil with anti-tumor effect after entering the human body through mouth through chemical reaction, and is mostly used for patients with colorectal cancer, breast cancer and gastric cancer. It is prohibited for pregnant or lactating women, patients with severe hepatic or renal insufficiency, allergy and dihydropyrimidine dehydrogenase deficiency. 2. Tegio: Tegio is a fluorouracil derivative, which also includes two modulators, otilase and tegafur, and is mainly used for postoperative adjuvant chemotherapy, or patients with advanced unresectable metastatic gastric cancer. It is forbidden for women who are allergic to the ingredients of the drug, severe myelosuppression, severe hepatic or renal insufficiency, pregnancy and breastfeeding. 3. Etoposide: Etoposide has been available in oral capsule preparation, which can be used in small cell lung cancer and lymphoma. It is forbidden for women who are allergic to the ingredients of the drug, have severe liver or kidney insufficiency, or are pregnant or breastfeeding. In addition to the above drugs, vincristine, topotecan, cyclophosphamide and other drugs have been developed into oral formulations with different indications. Patients are advised to choose the drugs under the guidance of professional oncologists and should not take the drugs without authorization to avoid adverse reactions.