Objective To suggest that during the clinical use of Jieyu Huatan Anshen Granules,attention should be paid to its adverse drug reactions,and further attention should be paid to the adverse drug reactions caused by traditional Chinese patent medicines and simple preparations and traditional Chinese medicine preparations,and it should be distinguished from the insomnia and dizziness reactions in traditional Chinese medicine.Methods A case of insomnia adverse reaction caused by Jieyu Huatan Anshen Granules was analyzed based on domestic databases such as CNKI and Wanfang data to investigate and discuss the mechanism of adverse reactions.Results One case of insomnia adverse reaction caused by Jieyu Huatan Anshen Granules was reported,and the correlation evaluation of the adverse reaction was “possible”.According to clinical observations,it may be a typical “dizziness reaction” in traditional Chinese medicine.Conclusions When adverse reactions based on traditional Chinese medicine decoction,traditional Chinese patent medicines and simple preparations and other traditional Chinese medicine preparations are found in clinical practice,they should be analyzed and identified,and the adverse reactions should be handled in time and be further observed and studied.