Flumatinib and Dasatinib do not specifically refer to which drug is better, and need to be given appropriately according to the patient’s condition and under the guidance of the doctor. Flumatinib refers to flumatinib mesylate tablets, mainly for the treatment of Philadelphia chromosome-positive chronic myeloid leukemia chronic phase adult patients, dasatinib tablets are used for the treatment of drug-resistant, or intolerant Philadelphia chromosome-positive chronic myeloid leukemia chronic, accelerated, and acute phase of the adult patients, the two drugs are specifically treating different conditions, there is no which drug is better. Some patients may experience diarrhea, abdominal pain, nausea, abdominal discomfort, fever, chest discomfort and other adverse reactions when using flumatinib mesylate tablets, and those who are allergic to the active ingredient of the drug or any of the excipients are prohibited from using it, and some patients may experience diarrhea, vomiting, fatigue and other adverse reactions when taking dasatinib tablets, and those who are allergic to the drug are prohibited from using it. It is recommended that patients strictly follow the doctor’s instructions to use drugs, avoid blind use of medication, if there are uncomfortable symptoms during the medication, should promptly go to the hospital, under the diagnosis of the doctor, according to the patient’s condition, targeted treatment.