Adulterants in Asian Patent Medicines

Abstract

To the Editor: Asian patent medicines are one component of what are called traditional Chinese medicines. Asian patent medicines comprise multiple products, including herbs, plants, animal parts, and minerals, which are formulated into tablets, pills, or liquids for ease of use. They are widely available in herbal stores and have gained acceptance by the American public as a form of alternative medicine. However, many patent medicines manufactured in Asian countries contain toxic ingredients, such as heavy metals, as well as prescription drugs or unapproved ingredients that may or may not be identified on the label.1,2 Some have caused serious . . .