Sanguina'ria canaden'sis, Santuinaria, Blood Root, N.F. -- The dried rhizome and roots with not more than 2 p.c. of foreign organic matter; N. America. Perennial herb, in early spring puts forth a rounded palmate 5-9-lobed leaf and a slender scape 10-20 Cm. (4-8') high, bearing a large, single white flower; fruit, June, capsule (pod), oblong, many-seeded. Rhizome horizontal, occasionally branched, subcylindrical, flattened, 2-7 Cm. (4/5-3') long, 5-15 Mm. (1/5-3/5') thick, dark brown, slightly annulate, few stem-scars, many broken filiform roots; odor slight; taste persistently acrid and bitter. Powder, brownish-red, sternutatory -- numerous starch grains resembling those of wheat, latex cells with brownish resin masses, few tracheal fragments; solvents: alcohol, diluted acetic acid, water; contains chelerythrine, sanquinarine, protopine, B-homochelidonine, resin, starch, ash 8 p.c. Systemic emetic, stimulating expectorant, sialagogue, alterative, tonic, acro-narcotic poison; chronic bronchitis, croup, asthma, gastro-intestinal catarrh, jaundice, dyspepsia, torpid liver. Poisoning: Wash out the stomach, give diffusible stimulants, amyl nitrite, morphone, atropine. Dose, expectorant, gr. 1-8 (.06-.5 Gm.); emetic, gr. 15-30 (1-2 Gm.); 1. Fluidextractum Sanguinariae (1st menstruum: hydrochloric acid 5cc., water 20, alcohol 75, 2d: 75 p.c. alcohol); 2. Tinctura Sanguinariae, 10 p.c., dose, mv-60 -- 3j-2 (.3-4; -- 4-8 cc.); 3. Syrupus Pini Albae Compositus, 4/5 p.c. Acetum, 10 p.c.; Infusion, 5 p.c., 3ss-4 (15-120cc.).