| Adverse reactions | Study ID | Treatment group | Control group | Interventions | OR | 95%CI | Events | Total | Events | Total |
| Sinus bradycardia | Shao MF2012 | 1 | 32 | 2 | 30 | Wenxin granules and propafenone vs propafenone | 0.45 | [0.04,5.26] | Wang HP2012 | 0 | 60 | 3 | 60 | Wenxin granules and propafenone vs propafenone | 0.14 | [0.01,2.69] | Zhao S2013 | 0 | 70 | 6 | 70 | Wenxin granules and propafenone vs propafenone | 0.07 | [0.00,1.27] | I2 = 0% () | | 0.15 | [0.03,0.70] |
| Atrioventricular block | Wang HP2012 | 0 | 60 | 2 | 60 | Wenxin granules and propafenone vs propafenone | 0.19 | [0.01,4.11] | Zhao S2013 | 0 | 70 | 3 | 70 | Wenxin granules and propafenone vs propafenone | 0.14 | [0.01,2.70] | I2 = 0% () | | 0.16 | [0.02,1.35] |
| Dizziness | Shao MF2012 | 2 | 32 | 2 | 30 | Wenxin granules and propafenone vs propafenone | 0.93 | [0.12,7.08] | Fan YN2018 | 1 | 30 | 1 | 32 | Wenxin granules and propafenone vs propafenone | 1.07 | [0.06,17.89] | Wang HP2012 | 3 | 60 | 0 | 60 | Wenxin granules and propafenone vs propafenone | 7.37 | [0.37,145.75] | Zhao S2013 | 4 | 70 | 0 | 70 | Wenxin granules and propafenone vs propafenone | 9.54 | [0.50,180.64] | I2 = 0% () | | 1.64 | [0.60,4.45] | Li ZM2010 | 2 | 77 | 0 | 51 | Wenxin granules vs propafenone | 3.41 | [0.16,72.52] | Meng FH2013 | 1 | 59 | 1 | 59 | Wenxin granules vs propafenone | 1.00 | [0.06,16.37] | I2 = 0% () | | 1.90 | [0.27,13.50] |
| Dry mouth | Shao MF2012 | 2 | 32 | 0 | 30 | Wenxin granules and propafenone vs propafenone | 5.00 | [0.23,108.53] | Wang HP2012 | 1 | 60 | 0 | 60 | Wenxin granules and propafenone vs propafenone | 3.05 | [0.12,76.39] | Zhao S2013 | 2 | 70 | 0 | 70 | Wenxin granules and propafenone vs propafenone | 5.15 | [0.24,109.15] | I2 = 0% () | | 4.39 | [0.73,26.32] | Li ZM2010 | 2 | 77 | 0 | 51 | Wenxin granules vs propafenone | 3.41 | [0.16,72.52] | Meng FH2013 | 0 | 59 | 2 | 59 | Wenxin granules vs propafenone | 0.19 | [0.01,4.11] | I2 = 41% () | | 1.19 | [0.19,7.63] |
| Gastrointestinal symptoms | Shao MF2012 | 2 | 32 | 0 | 30 | Wenxin granules and propafenone vs propafenone | 5.00 | [0.23,108.53] | Fan YN2018 | 1 | 30 | 1 | 32 | Wenxin granules and propafenone vs propafenone | 1.07 | [0.06,17.89] | Wang HP2012 | 3 | 60 | 1 | 60 | Wenxin granules and propafenone vs propafenone | 3.11 | [0.31,30.73] | Zhao S2013 | 6 | 70 | 3 | 70 | Wenxin granules and propafenone vs propafenone | 2.09 | [0.50,8.73] | I2 = 0% () | | 2.37 | [0.85,6.60] | Li ZM2010 | 6 | 77 | 12 | 51 | Wenxin granules vs propafenone | 0.27 | [0.10,0.79] | Meng FH2013 | 4 | 59 | 2 | 59 | Wenxin granules vs propafenone | 2.07 | [0.36,11.78] | I2 = 74% () | | 0.50 | [0.21,1.15] |
| Abnormal sensation in the tongue | Shao MF2012 | 0 | 32 | 2 | 30 | Wenxin granules and propafenone vs propafenone | 0.18 | [0.01,3.81] | Not applicable | | 0.18 | [0.01,3.81] | Meng FH2013 | 0 | 59 | 2 | 59 | Wenxin granules vs propafenone | 0.19 | [0.01,4.11] | Not applicable | | 0.19 | [0.01,4.11] |
| Frequent premature ventricular contraction | Li ZM2010 | 0 | 77 | 3 | 51 | Wenxin granules vs propafenone | 0.09 | [0.00,1.77] | Not applicable | | 0.09 | [0.00,1.77] |
| R-R interval prolongation | Li ZM2010 | 0 | 77 | 1 | 51 | Wenxin granules vs propafenone | 0.22 | [0.01,5.44] | Not applicable | | 0.22 | [0.01,5.44] |
|
|