NS5806 is primarily used in research settings to study its effects on ion channels, particularly potassium channels. It has been investigated for its potential to modulate cardiac electrical activity, making it a candidate for studying arrhythmias and other heart-related conditions. Additionally, NS5806 is explored for its role in neurological research, where its impact on neuronal excitability and signaling pathways is examined. Its application in these areas helps advance understanding of cellular mechanisms and potential therapeutic targets.