Lonfatinib is an anti-tumor drug that mainly works for patients who cannot be surgically removed due to primary liver tumors, or tumors of the thyroid gland and kidney areas, and can take Lonfatinib for active anti-tumor treatment. Lonfatinib is an imported drug, which is not approved to be marketed in China for the time being. Patients can buy it on behalf of overseas, or in overseas pharmacies. In addition, patients can buy it in pharmacies with regular qualification or online to avoid the situation of buying fake drugs after purchasing from fraudulent websites. Patients should pay attention to regular observation of the patient’s blood routine, liver function, and coagulation function while taking it. For lenvatinib, some patients may experience gastrointestinal bleeding and a decrease in white blood cells and liver function damage after taking the drug for a period of time. For the different complications caused, active symptomatic treatment is needed.