Oshitinib is clinically applicable to patients with brain metastasis of lung cancer, but not all patients with brain metastasis can use this drug, and the drug should be used in strict compliance with medical advice. Oshitinib belongs to the targeted therapy drugs, due to the drug has the effect of passing the blood-brain barrier, it has obvious therapeutic effect on patients with brain metastasis of non-small cell lung cancer, and also has the effect of controlling and preventing brain metastasis. During the use of this drug, adverse reactions such as rash, diarrhea, dry skin and so on may occur, so it needs to be used under the guidance of a doctor, and adverse reactions should be consulted in time, and it is forbidden for those who are allergic to the drug. So not all patients with brain metastasis can take this drug, non-lung cancer brain metastasis patients are not recommended to take it, the specific need to combine with their own condition under the advice of the doctor, choose the most suitable drug for themselves.