CALAMUS—SWEET FLAG
The unpeeled, dried rhizome of acorus calamus Linne.
Habitat.—United States, Europe, Western and Southern Asia, including India and Japan.
Properties.—The leaves as well as the root have an aromatic odor; but the root only is employed. It should be collected late in the autumn, or in the early spring. After removal from the ground, the roots are washed, freed from their fibers, and dried with moderate heat. By drying they lose nearly one-half their diameter, but are improved in odor and taste.
Constituents.—Acorin, a liquid, yellow glucoside, having a bitter taste; a volatile oil; calamine; choline.
Dose.—Horses and cattle, 1 to 2 ozs.; sheep and pigs, 1 to 3 drs.; dogs, 15 grs to 1 dr.
PREPARATIONS
FLUIDEXTRACTUM CALAMI—FLUIDEXTRACT OF CALAMUS
Made by maceration, percolation and evaporation.
Dose.—Horses and cattle, 1 to 2 ozs.; sheep and pigs, 1 to 3 drs.; dogs, 15 ms. to 1 dr.