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脑脉通能同步增加狗颈内动脉和椎动脉的血液流量;能对抗垂体后叶素引起上两动脉的血液流量减少。从狗十二指肠给药1.2g/kg,相当于im罂粟碱1mg/kg增加的血液流量。脑脉通的量效关系和时效关系呈正相关关系。
Brain motility increases the blood flow of the internal carotid artery and vertebral artery in dogs simultaneously; it can counteract the decrease of blood flow in the upper two arteries caused by pituitrin. Dosing 1.2 g/kg from the dog duodenum corresponds to an increase in blood flow of 1 mg/kg papaine. There is a positive correlation between the dose-effect relationship and time-effect relationship of Naomaitong.