In addition, Nardostachyos Radix Et Rhizoma (Gan Song) exhibited the cardioprotective effects via inhibiting myocardial apoptosis, inflammation, oxidative stress and showed a great promise as a novel option for arrhythmia by regulating several ion channels (Ik, Ik1, INa, ICaL, and Ito) (Li et al., 2017b). Here, IK is linked to cardiac arrhythmia.