The invention provides a compounds and salts that are sodium channel modulators, as well as compositions containing such a compound or salt and therapeutic methods for using such a compound, salt, or composition.本發明提供為鈉通道調節劑之化合物及鹽以及含有此一化合物或鹽之組合物及使用此一化合物、鹽或組合物之治療方法。