Origin.—Arnica is obtained from the flower roots of a plant that grows in mountainous countries of Central Europe, Asia and America.
Composition.—An active principle called arnicin. The root contains an essential oil, on which depends in great part its physiological activity.
PREPARATIONS
EXTRACTUM ARNICAE RADICIS—EXTRACT OF ARNICA ROOT (NON-OFFICIAL)
Dose.—Horses and cattle, 15 grs. to 1 dr.; sheep and pigs, 5 to 10 grs.; dogs, 1⁄2 to 3 grs.
FLUIDEXTRACTUM ARNICAE RADICIS—FLUIDEXTRACT ARNICA ROOT (NON-OFFICIAL)
Dose.—Horses and cattle, 1 to 3 drs.; sheep and pigs, 1⁄2 to 1 dr.; dogs, 2 to 10 ms.
TINCTURA ARNICAE—TINCTURE OF ARNICA
This is the best and most used preparation of Arnica.
Dose.—Horses and cattle, 2 to 4 drs.; sheep and pigs, 15 ms. to 1 dr.; dogs, 5 to 30 ms. This dose can be given every three hours to maintain the circulation of the skin; as a diaphoretic, the dose can and may be increased and combined with other diaphoretics.