Hydrastis canadensis - Golden seal, Yellow puccoon
"CONSTITUENTS: Berberine, Hydrastine, Canadine.
PREPARATIONS: Specific Medicine Hydrastis , alcoholic, contains a bitter coloring principle, berberine, and the white alkaloids, hydrastine and canadine, and resinous and oily principles: Dose, from one to ten minims. Colorless Hydrastis, non-alcoholic, contains the colorless alkaloids and the inorganic salts dissolved in glycerine and water. Extractum Hydrastis Fluidum, Fluid Extract of Hydrastis: Dose, three to twenty minims. Extractum Hydrastis, Inspissated Extract, Extract of Hydrastis: Dose, one to five grains. Tincture of Hydrastis: Dose, from twenty minims to two drams. Hydrastis Pulvis, Powdered Hydrastis: Dose, from three to fifteen grains. Berberine (Hydrastin, yellow): Dose from one-half to five grains. Hydrastine (white): Dose, from one-tenth of a grain to three grains.
Therapy: In its therapeutic influence its widest range of action is upon the stomach, in functional disorders of that organ. It is the most natural of stimulants to the normal function of digestion. Its influence upon the mucous surfaces renders it most important in catarrhal gastritis and gastric ulceration. It supersedes all known remedies as a local, and also as a constitutional tonic when this condition is present. ..."
(Finley Ellingwood: The American Materia Medica, Therapeutics and Pharmacognosy, 1915)