Provided are compounds according to formula (Ia) or (Ib) as described herein, that are capable of modulating the activity of influenza viruses (e.g., influenza A virus), for example, via interaction with the M2 transmembrane protein, and other similar viroporins. Also provided are methods for treating an influenza A-affected disease state or infection comprising administering a composition comprising one or more compounds according to according to formulas (Ia′) or (Ib), as described herein.