Objective To investigate the effect of Chaihu Sanshen capsule on the expression and distribution of connexin 43 (Cx43) of gap junction in myocardial cells of rats with ischemic arrhythmias, and provide experimental basis for clinical application of Chaihu Sanshen capsule. Methods The rats were randomly divided into blank group, sham operation group, model group, Chaihu Sanshen capsule (Qinghao group), Chaihu Sanshen capsule (Changshan group), amiodarone group and Wenxin granules group, 10 rats in each group. After intervention for 10 d, i...