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..
The fruit of Carum Carvi Linne (nat. ord. Umbelli-fera).
Central and Western Asia; cultivated.
Oblong, laterally compressed, about 4 or 5 mm. long, usually separated into the two mericarps, which are curved, narrower at both ends, brown, with five yellowish, filiform ribs, and with six oil-tubes. Caraway has an agreeable odor, and a sweetish, spicy taste. Resembling Caraway.-Conium and Fennel. Caraway is known by its small ridges and spicy taste.
The chief constituent is the official volatile oil (see below), 5 to 7 Per cent.
Caraway is contained in Tinctura Cardamomi Composita.
Dose, 15 to 30 gr.; 1. to 2. gm.
Oleum Carl - Oil of Caraway. A volatile oil distilled from Caraway.
A colorless, or pale yellow, thin liquid, having the characteristic, aromatic odor of Caraway, and a mild, spicy taste. Sp. gr., 0.910 to 0.920.
In an equal volume of Alcohol.
The chief constituents are - (1) Cymene, C10H14; also found in Oil of Eucalyptus (see p. 528). (2) Carvol, C10H14O, isomeric with Thymol (q. v.), also found in Oil of Spearmint. (3) Limonene, a ter-pene, C10H16; also found in Oil of Lemon (q. v.).
Oil of Caraway is contained in Spiritus Juniperi Compositus.
Dose, 1 to 5 m.; .06 to .30 c.c.