Origin. - A volatile oil distilled from fennel.

Description and Properties. - A colorless or pale-yellowish liquid, having the characteristic aromatic odor of fennel and a sweetish, mild, and spicy taste. Soluble in an equal volume of alcohol. It should be kept in well-stoppered bottles, in a cool place, and if it has partly or wholly solidified, it should be completely liquefied by warming before being dispensed.

Constituents. - It has constituents similar to those of the oil of anise.

Dose. - 1-5 minims (0.06-0.3 Cc.) [3 minims (0.2 Cc), U. S. P.].

Official Preparations

Aqua Foeniculi (0.2 per cent.) - Aquae Foeniculi - Fennel Water. - Dose, 1/4-1 fluidounce (8.0-30.0 Cc.) [4 drams (16 Cc), U. S. P.].

Pulvis Glycyrrhizae Compositus - Pulveris Glycyrrhizae Compositi - Compound Liquorice Powder. - Dose, 1/2-2 drams (2.0-8.0 Gm.) [60 grains (4 Gm.), U. S. P.]. (Formula given under Senna.)

Spiritus Juniperi Compositus - Spiritus Juniperi Compositi - Compound Spirit of Juniper (0.5 per cent.). - Dose, 2-4 fluidrams (8.0-15.0 Cc). (Formula given under Carum.)

Physiological Action and Therapeutics are similar to those of anise.