his paper researched the effect of Bu Yang Huan Wu Tong (BYHWT) and Yi Qi Hue Xue Fang (YQHXF) onthe cerebral ischemic-postischemic reperfusion injury in the rabbit tetra-vessels obstruct model. The results showed thatthere were the identical and different mechanisms between the two drug recipes above. The identical mechanismsshowed that the two recipes can inhibite the increase of MDA in brain tissue and improve the GSH-Px activity afterreperfusion, which suggested that these drugs own the proteCtive action on the free radical and anti-oxidase, inhibitethe increase of TXB2 and the decline of ...