The dried leaves of Eucalyptus Globulus collected from the older parts of the tree.

Eucalyptol.—Eucalyptol, U. S. P.

An organic oxid (cineol), obtained from the volatile oil of Eucalyptus Globulus and from other sources.

Properties : Eucalyptol occurs as a colorless liquid, having a distinctly camphoraceous odor, and a pungent, spicy and cooling taste. Eucalyptol is soluble in all proportions in alcohol, but is practically insoluble in water.

Dosage: 0.3 c.c. or 5 minims.

Oleum Eucalypti.—Oil Of Eucalyptus, U. S. P.

The oil distilled from the fresh leaves of eucalyptus, and yielding not less than 50 per cent, of eucalyptol (cineol).

Properties : Oil of eucalyptus occurs as a colorless or pale yellow liquid, having a somewhat camphoraceous odor, and a pungent, spicy and cooling taste. It is miscible in all proportions with alcohol, but practically insoluble in water.

Action and Uses: Eucalyptol and oil of eucalyptus are antiseptic and expectorant. For internal use they are preferably administered in the form of capsules, and for local application in the throat or nose are used either in the form of oil sprays or are directed to be inhaled in the form of vapor from boiling water. Oil of eucalyptus, 2 c.c; chloroform, 3 c.c. and castor oil, 40 c.c, mixed and taken in two portions at half-hour intervals, is being recommended as an anthelmintic for uncinariasis.

Dosage: 0.5 c.c. or 8 minims.