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.
Peruvian Rhatany, Krameria triandria. Deleted from the ninth U. S. P., otherwise universally official. It is strange what a host of tannin-bearers are in official standards, even long after they drop out of professional esteem. See "Gambir." What is said of it applies to krameria. Dose of krameria, 15 grains. Gambir is to be preferred.