Dihydroarwedine is an alkaloid that has been found in N. pseudonarcissus and an inhibitor of glycogen synthase kinase 3β (GSK3β).1 It inhibits recombinant human GSK3β by 39% when used at a concentration of 10 µM.
1.HulcovÁ, D., Ma?ÍkovÁ, J., KorÁbe?nÝ, J., et al.Amaryllidaceae alkaloids from Narcissus pseudonarcissus L. cv. Dutch Master as potential drugs in treatment of Alzheimer’s diseasePhytochemistry165112055(2019)