Peumus boldus - Boldus
"CONSTITUENTS: The plant contains an essential oil, a volatile oil, and an alkaloid, boldine. A narcotic alkaloid called boldoglucin.
PREPARATIONS: A tincture is prepared. Dose: five to twenty drops. Boldine is given in doses of from one to five grains. The essential oil is given in capsules in three to five drops. Fluid extract, from ten to thirty minims.
Therapy: The agent has not been in general use. The physicians of the south extol its virtues in the treatment of liver diseases. It is of excellent service in the treatment of chronic intestinal trouble where there is congestion and general inactivity of the liver. Present with this condition there may be painful digestion resulting from gastric debility, where there is also anemia with a general sallowness of the skin...."
(Finley Ellingwood: The American Materia Medica, Therapeutics and Pharmacognosy, 1915)