Extractum Leonuri.—Extract of Leonurus.
Related entry: Leonurus.—Motherwort
SYNONYM: Extract of motherwort.
Preparation.—Exhaust the recently dried herb of Leonurus cardiaca, in coarse powder, with alcohol, water, each, a sufficient quantity, proceeding in the same manner as explained for the preparation of Alcoholic Extracts, on page 758. (J. King).
Medical Uses and Dosage.—Extract of motherwort is emmenagogue, nervine, and antispasmodic, and may be used with advantage in all forms of disease in which the cold infusion of the herb is recommended. The dose is from 3 to 6 grains, every 2 or 4 hours. It may be advantageously combined with the extracts of asclepias, black cohosh, nerve root, cramp bark, scullcap, etc.