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.
Licorice Root, Glycyrrhiza glabra, Spanish Licorice; G. glandulifera, Russian Licorice. Very generally official. Valuable as a pill excipient and as a demulcent and mild expectorant and laxative.
Pulvis Glycyrrhizae Compositus, Compound Licorice Powder, is a pleasant laxative given in an average dose of 1 drachm. It is especially adapted for pregnant women. A good fluid licorice flavoring agent is Elixir Adjuvans; it covers the taste of many disagreeable drugs, such as ammonium chloride, the bitter sulphates, senna, senega, turpentine, and hyoscyamus.