HSI under a dosage of 150 mg/kg could not delay occurring time of myocardial ischemic injury induced by pituitrin but could shorten sustained time of injury remarkbly.

• HSI在150mg/kg剂量下不能推迟垂体后叶素(PAH)诱发的心肌缺血性损害的发生时间,但可非常显著地缩短损害持续时间;