Sini decoction(SND) is one of the most famous and important compound in Shanghan Lun,which was composed with Radix aconite lateralis praeparata(RA), Rhizoma zingiberis(RZ) and Radix et rhizoma glycyrrhizae praeparata cum melle(RE). SND is excellent and compact,and modern study has indicated that SND has expressed distinct superiority and effect characteristic in prevention and clinical treatment of heart and cerebrovascular disease.RA is recognized as principal material containing alkaloids constituen...