Parcetasal is a non-steroidal anti-inflammatory agent that can be used in pain relief studies.

6'-Hydroxy-3,4,2',3',4'-pentamethoxychalcone is an alkenylphenol from Piper obliquum with antiinflammatory and antibacterial activities.

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.