目的 :研究头痛安片的活血化瘀和镇痛作用。方法 :采用扭体实验和急性血瘀模型大鼠血液流变学实验。结果 :头痛安片降低了全血粘度、血浆粘度 ,减少了扭体反应次数。结论 :头痛安片具有明显的活血化瘀和镇痛作用 Objective : To study the effect of blood stasis and analgesia of headache tablets. Methods: Writhing experiment and hemorheology experiment in rats with acute blood stasis model were used. Results: Headache tablets reduced whole blood viscosity, plasma viscosity, and reduced the number of writhing responses. Conclusion : Headache tablets have obvious blood circulation and analgesia