Neoprzewaquinone A has algicidal effect on M. aeruginosa , with EC50 of 4.68 mg /L, the potential inhibition mechanisms are neo-przewaquinone A caused M. aeruginosa cells morphologic damage or lysis.

Maculosidine affect the PS I electron acceptors on leaf discs, it can inhibit ATP synthesis, basal, phosphorylating and uncoupled electron transport acting as Hill reaction inhibitors on spinach chloroplasts.

Lupeol palmitate is a naturally occurring compound that can be extracted from Ligularia songarica and has antiulcer activity and gastrointestinal protection.