An alkaloid with anticancer and antioxidant activities binds to GSH and inhibits the GSH-GSTP1 protein-protein interaction reduces the viability of A549 and NCI H460 cells (IC50s 14.91 and 13.72 UM respectively) reduces tumor growth in an A549 mouse xenograft model at 2.5 and 5 mg/kg twice per week reduces plasma glucose levels as well as levels of plasma and pancreatic TBARS and lipid hydroperoxides in a rat model of streptozotocin-induced diabetes