The price of different lung cancer targeted drugs is different, for example, the price of Eresa in 2022 is about $950 per box, the specification is 250mg*10 capsules, the selection of targeted drugs depends on the type of lung cancer of the patient, the treatment plan, the patient’s physical basis, and is affected by many factors. Different dosages among different targeted drugs have different prices. In addition, there are domestic and imported targeted drugs, the price difference is big, and the reimbursement policy of local health insurance is different, so the specific price should be consulted with local medical institutions. Patients using targeted drugs should be used under the guidance of doctors, not self-medication. The use of targeted drugs will bring some adverse reactions such as skin itching, mucositis, hair changes, diarrhea and so on. In severe cases, lung damage may also occur. Therefore, patients must use targeted drugs under the guidance of a doctor.