It is not possible to determine how long it takes for side effects to occur after taking Ameditinib, as it is related to the patient’s condition and there is no strict time for side effects to occur. Clinically, the time for side effects to occur after taking Aimetinib ranges from a few days to a few weeks, and the specific time for side effects to occur depends on the individual’s condition, and patients should follow the doctor’s instructions to take the medication. The full name of Aimetinib is Aimetinib Mesylate Tablets. Side effects such as rash, itching, diarrhea, anemia, dizziness, myalgia, stomatitis, arthralgia, arrhythmia, interstitial lung disease, eye and accessory organ disease, and elevation of creatine phosphokinase in the blood can be seen after taking this drug. Ametinib mesylate tablets are a targeted drug that inhibits the epidermal growth factor receptor kinase of tumor cells, thereby inhibiting tumor growth, and is used in adult patients for the treatment of locally advanced or metastatic non-small cell lung cancer that is positive for the EGFR T790M mutation. This drug may also elevate blood creatine phosphokinase and increase the risk of muscular symptoms such as myalgia and muscle weakness when combined with statins and potent CYP3A4 enzyme inhibitors such as erythromycin, ketoconazole, cyclosporine, itraconazole, and clarithromycin. It is contraindicated in those who are allergic to the product; those with congenital long QT interval syndrome. The drug may be reproductively toxic, so during the period of administration and for 3 months after discontinuation of the drug, patients of childbearing age need to use contraception, and breastfeeding women need to stop breastfeeding. It is not recommended for pregnant women and children under 18 years of age. If you need to use the drug, please strictly follow the instructions of the doctor under the guidance of the medication, do not self-medication.