• Feature ArticlesFeature Articles

    Drug preclusion and public health: The case for a narrow interpretation of ‘article’

    The definition of “dietary supplement” in the Food, Drug, and Cosmetic (FD&C) Act includes several provisions limiting what can be a legal dietary supplement based on the ingredients used and delivery form, as well as whether a substance has a history of drug use. This article explores the US Food and Drug Administration’s (FDA’s) use of this last provision, often called “drug preclusion.” The authors examine the history of the provision, Congress’s purported purpose for ...