Cyclovrirobuxine D is white or light yellow crystal or powder, which is extracted from the medicinal plants Buxus sinica (Rehd.et Wils.) Cheng, ect. Actions and Indications:To iImprove comary circulation and the body ability of resistance to oxygenlack, to protect body from cardiogmus and arrhythmia. Used in cardiogmus induced by coromary atheroselerosis.