The effects of edaravone injection are mainly to protect brain cells, scavenger free radicals, antioxidant, and improve neurological symptoms. Edaravone is a new type of brain protection agent and free radical scavenger, which can inhibit lipid peroxidation and reduce oxidative damage of brain cells, vascular endothelial cells and nerve cells. Edaravone is mainly used for acute cerebral infarction, acute cerebral infarction, to improve neurological symptoms, mobility and dysfunction caused by acute cerebral infarction; inhibit delayed neuronal death, and also used to inhibit the progression of dysfunction caused by amyotrophic lateral sclerosis. Adverse reactions include liver and kidney function abnormalities, thrombocytopenia, disseminated intravascular coagulation; belching, fever, elevated blood pressure, occasional nausea, constipation gastrointestinal reactions, flushing, headache, rash or redness at the injection site and other allergic reactions; intravenous infusion of occasional cardiovascular reactions of cardiac arrhythmia, acute cerebral edema and so on. Before and after the use of regular testing of liver and kidney function, hematological examination. Allergic to the product, severe renal failure, pregnant and lactating women are prohibited. Edaravone should be judged by a doctor according to the condition before use, do not use on your own.