Objective:Long-term toxic reaction of Chaowei Sini Decoction on rats was observed to evaluate the safety and provide clinical reference.Methods:The toxic reaction of rats were observed by long-term toxicity testing.Results:Treating for 12 weeks and drug withdrawal for 2 weeks,the behaviour,activities,hair color,urination and defecation,diet and drinking had no changes.There was no abnormal discharge in eyes,nose or mouth.There was on influence on red cells,hemoglobin,blood platelet and prothrombin time.There was on influence on blood biochemical analysis.Conclusion:Bo...