This section is from the book "Botanic Drugs Their Materia Medica, Pharmacology and Therapeutics", by Thomas S. Blair. Also available from Amazon: Botanic Drugs, Their Materia Medica, Pharmacology and Therapeutics.
Queen's Root, Stillingia sylvatica. Official only in the U. S. Contains an oil and acid resin largely lost in drying. The most active preparations of stillingia are made from the fresh root, which is assuredly active as an emeto-cathartic in full doses and in smaller doses excite secretions and excretions in the way generally designated as alterative.
There is a tendency to discredit the "vegetable alteratives," probably because few so-called ones really possess any such activity. Stillingia is far from being inert, and if any vegetable drug is really a true alterative stillingia must be so classed, along with phytolacca root.
Stillingia actively stimulates the secretory functions, and it has long sustained a reputation in the treatment of "scrofula," chronic cutaneous and hepatic disorders, tertiary syphilis, chronic laryngitis, chronic "rheumatism," and, in fact, in a host of conditions in which an alterative is indicated.
Candor compels the admission that most official preparations of stillingia are of little value. The Eclectics make up their preparations of stillingia from freshly dug material; they are wise in doing so.
Stillingia enters into many shot-gun formulae, and hence many physicians who use it in admixture with other agents are really not acquainted with stillingia itself. Many of our botanic remedies are comparatively unknown because not individually and separately used.
The fl. is given in doses of 10 to 60 minims. Fluidextracts made from fresh material may be given in doses of from 5 to 30 minims, ten-minim doses being usually sufficient. Compound stillingia liniment, nonofficial, is recommended as an application to the throat in croup and affections of the larynx.