Resibufogenin (Bufogenin, Recibufogenin), a component of huachansu with anticancer effect, triggers necroptosis through upregulating receptor-interacting protein kinase 3 (RIP3) and phosphorylating mixed lineage kinase domain-like protein at Ser358. Resibufogenin exerts cytotoxic effect by inducing reactive oxygen species (ROS) accumulation. Resibufogenin induces apoptosis and caspase-3 and caspase-8 activity. Resibufogenin increases Bax/Bcl-2 expression, and suppresses cyclin D1, cyclin E, PI3K, p-AKT, p-GSK3β and β-catenin protein expression.