Chemical Ingredient: 1) Type of pananxadiol: Rb1, Rd, R4, Rg3; 2) Type of pananxitriol: Rg1, Re, R1, R2, Rh1; 3) Few quantities of high active factors: Rb2, Rb3, Rc, F2, Ta, R3; 4) The total are 18, The quantity of Rb1, Tg1, R1 is the highest. They are usually regarded as inspecting index. Pharmacological and pharmacodynamic study: 1. Protection of cerebral ischemia: Legate rat's double artery and drop blood pressure to make model of acute cerebral ischemia. Inject this product 200, 100, 50mg/kg weight to rats respectively in advance. Once daily and continue to use for three days. It can inhibit descending speed of EEG wave during ischemic stage obviously. 2. Changes of water and N+ in ischemia cerebral tissues: This product can reduce the content of water and Na in ischemia cerebral tissues and lighten edema of acute cerebral cortex. 3. Effects on blood flow of coronary artery: Intravenous injecting anesthetic dog 60% of the contents of drug(3ml)can add blood flow of coronary artery. The average increased value is 15.28+-2.26mk/min. It is equal to that of 158.93% before injecting. The average durative time is 16.46%. 4. Countermine rabbit's acute myocardial induced by hypothesis: Continue to administer notoginsenosides to rabbit with myocardial infraction which is modeled by ligating descending anterior branch of coronary artery. It can recover changes of myocardial ischemia quickly. The changes appear such as elevation of St, inversion of wave. The products can countermine myocardial ischemia. 5. Effect on pallet aggregation: It can inhibit platelet aggregation induced by ADP and there has certain dose-effect relationship. 6. Effect on thrombus formation in rat's body: It can inhabit thrombus formation in rat's body significantly and there has certain dose-effect relationship