This section is from the book "Materia Medica Pharmacy, Pharmacology And Therapeutics", by W. Hale White. Also available from Amazon: Materia Medica Pharmacy, Pharmacology And Therapeutics..
A volatile oil distilled from the leaves of Melaleuca Leucadendron Linne (nat. ord. Myrtaceae).
East Indian Islands.
A light, thin, bluish-green, or after rectification, colorless liquid, having a peculiar, agreeable, distinctly camphoraceous odor, and an aromatic, bitterish taste. Sp. gr., 0.922 to 0.929.
Readily in Alcohol.
The chief constituents are - (1) Cajuputol, C10H18O; (67 per cent.) said to be identical with Cineol, and is isomeric with Eucalyptol. (2) Terpineol, C10H18O, and (3) Several terpenes, - C10H16 (cajuputene,) and
Copper, and other oils. Dose, 1 to 5 m.; .06 to .30 c.c.
The action of oil of cajuput is exactly the same as that of the oil of cloves (q. v.)
Oil of cajuput is used as a stimulant, irritant, and counter-irritant - usually diluted with sweet oil - for all sorts of purposes when any of these effects are needed. Thus it is rubbed in for chilblains, myalgia, rheumatic pains, chronic inflammatory conditions of the joints or periosteum. It has also been employed as a parasiticide for Tinea tonsurans. The only objection to its use is its strong smell.