Lenvatinib mesylate cannot be stopped for two days and then taken again, it is recommended to use the medicine reasonably under the guidance of doctor. Lenvatinib mesylate belongs to antitumor drugs, mainly used for the treatment of patients who have not received systemic treatment and have unresectable hepatocellular carcinoma, the drug needs to be taken for a long time according to the doctor’s instructions, if the drug is stopped suddenly, it may not achieve the desired therapeutic effect, or it may aggravate the degree of its lesions. The half-life of the drug in the body is about 24 hours, and cannot maintain the effective concentration of the drug for 48 hours, therefore, the drug cannot be stopped for two days and then taken again, if the drug needs to be stopped due to other factors or the condition, it is recommended to decide the stopping plan after the doctor’s comprehensive assessment of the condition. Usually after the use of the drug, high blood pressure, proteinuria and other discomforts may occur; and for the drug ingredients allergy is prohibited, in the process of using the drug also need to pay attention to monitoring liver and kidney function and blood pressure. If you need to use the drug, it is recommended to use the drug under the guidance of a doctor, not blindly self-medication, in order to avoid adverse effects.