The usage of Anrotinib for the treatment of lung adenocarcinoma is 12mg once a day, 2 consecutive weeks and then stop for one week, and follow this cycle to keep using the drug. Anrotinib is mainly used in the treatment of non-small cell lung cancer, small cell lung cancer, soft tissue sarcoma, medullary thyroid cancer and other diseases, and lung adenocarcinoma also belongs to non-small cell lung cancer. Its recommended dosage is 12mg each time, taken orally once a day before breakfast, used for 2 weeks in a row and then discontinued for one week, 3 weeks as a course of treatment. This product needs to be used for a long time until the disease progresses or intolerable side effects occur. Common side effects include weight loss, fatigue, gastrointestinal bleeding, hemoptysis, hypertension, etc. This product is contraindicated for those who are allergic to this product, pregnant and lactating women, those with central squamous carcinoma or those who are at risk of hemoptysis, and those with severe hepatic or renal impairment. Please follow the doctor’s instructions to adhere to the use of medication, if there is any obvious discomfort, please consult a physician.