Bisdehydroneotuberostemonine shows significant inhibitory effect on lipopolysaccharide-induced nitric oxide production in BV2 microglia at 100 uM.

Dehydro-δ-tocopherol shows antioxidant capacities.

Stilbostemins N may exhibit moderate antibacterial activities.

Neostenine shows significant antitussive activity.

Stilbostemin A, stilbostemin B , stilbostemin D , stilbostemin F , and stilbostemin G show structure-dependent inhibition of leukotriene biosynthesis with IC(50) values ranging from 3.7 to >50 microM.

Sessilifoline A is a natural product from Stemona japonica.

1. Protostemonine has anti-inflammatory activity, it effectively attenuates LPS-induced inflammatory responses in vitro and in vivo; the beneficial effects are associated with the decreased phosphorylation of MAPK and AKT and the reduced expression of pro

Neotuberostemonone is a natural product from Stemona mairei.