Gleevec, or imatinib, generally speaking, the price of a box of slow-grain leukemia treatment drugs such as domestic imatinib is 600 to 800 yuan, and the price of imported imatinib is even higher, generally ranging from thousand dollars to ten thousand dollars. The price of imatinib varies with different manufacturers, specifications, packaging, etc. It should be based on the selling price in local regular hospitals or pharmacies. Imatinib is a tyrosine kinase inhibitor, clinically used in the treatment of chronic granulocytic leukemia and malignant gastrointestinal mesenchymal tumors. In the treatment of lentigo, as a targeted therapeutic agent against the Philadelphia chromosome, it can be used in the chronic, accelerated or acute phase of lentigo. Adverse reactions include rash, diarrhea, and pancytopenia, etc. Severe hepatic and renal impairment and hypersensitivity to the product are contraindicated. Imatinib needs to be used under the guidance of a specialized doctor, and during its use, liver function, body weight and electrocardiogram should be tested regularly.