QUALITIES. _Taste_, hot and acrid; _Odour_, pungent. CHEMICAL
COMPOSITION. All its virtues depend upon an essential oil. SOLUBILITY.
Both water and alcohol extract its active principles, but they are
dissipated by decoction. MEDICINAL USES. As a stimulant in paralysis it
is often useful; Sydenham found it successful in dropsies which were
consequent on intermittent fevers; Cullen recommends a syrup made with
the infusion of horse radish, to remove that species of hoarseness which
depends upon local relaxation; Dr. Withering extols an infusion of this
root in milk as a cosmetic both safe and effectual. INCOMPATIBLE
SUBSTANCES. Alkaline Carbonates; _Oxy-muriate of Mercury_; _Nitrate of
Silver_; the _Infusion of Galls_ and _of Yellow Cinchona Bark_, produce
precipitates with the infusion of this root. FORMS OF EXHIBITION. In
substance, scraped or swallowed whole, or in infusion.[398] DOSE of the
substance ʒj, of an infusion f℥ij. See _Infus Armoraciæ comp_. OFFICINAL
PREPARATIONS. _Infusum Armoraciæ comp:_ L. _Spiritus Armoraciæ comp:_
L.D.