Gently boil pieces of dried root in water for about fifteen minutes, then let steep covered. This preparation, historically consumed in small cups, requires professional advice before any regular use. Dosage must be validated with a healthcare professional or recognized pharmacopoeia before use.
Fresh or dried root was macerated in alcohol for several weeks to extract the active principles, according to traditional methods of 19th-century herbalists. Use of this tincture must be supervised by a qualified professional. Dosage must be validated with a healthcare professional or recognized pharmacopoeia before use.
A more concentrated decoction than that which was drunk was prepared then allowed to cool, for use as a gargle only, without ingestion. This application should remain occasional and be discussed with a healthcare professional. Dosage must be validated with a healthcare professional or recognized pharmacopoeia before use.
Ceanothus root is sometimes found dried at certain herbalists specializing in North American plants; the plant itself grows wild in dry prairies and clearings of North America.
The root is traditionally harvested in autumn, when the sap descends and the active principles concentrate there.