Boldine is an alkaloid of the aporphine class that can be found in the boldo tree and in Lindera aggregata. Boldine has antioxidant activity that effectively protects against free radical induced lipid peroxidation or enzyme inactivation. In addition, it has alpha-adrenergic antagonist activities in vascular tissue, and it has also been reported to have hepatoprotective, cytoprotective, antipyretic and anti-inflammatory effects.