A drug composition for treatment and prevention of ischemic stroke and its preparation methods

A drug composition for treatment and prevention of ischemic stroke and its preparation methods. The drug composition consists of Sedanolide 19-72%, Ligustilide 17-67%, Gastrodin 2-29% and solvent. It has a high purity of more than 98%. The drug composition can be prepared into different forms of drugs, including injection, and it can effectively alleviate symptoms of the disease.