Habitat.—Mozambique, East Africa. Cultivated in the East Indies.
Properties.—Odor slight, taste bitter. It contains calumbin, a neutral bitter, crystalline substance; an alkaloid, berberine; calumbic acid and starch.
Dose.—Horses and cattle, 1⁄2 to 1 oz.; sheep and pigs, 1 to 2 drs.; dogs, 5 to 30 grs.
PREPARATIONS
FLUIDEXTRACTUM CALUMBAE—FLUIDEXTRACT OF CALUMBA
Made by maceration and percolation with alcohol and water, and evaporation.
Dose.—Same as calumba.
TINCTURA CALUMBAE—TINCTURE OF CALUMBA
Made by maceration and percolation of calumbae, with alcohol and water.
Dose.—Horses and cattle, 2 to 4 ozs.; sheep and pigs, 1⁄2 to 1 oz.; dogs, 1 to 2 dr.