Pharmaceuticals are identified through a number of standardized identifiers at varying levels to enable addressing different needs in global markets. Each type of identifier can serve distinct purposes. Further, any of those identifiers can be encoded into different types of barcodes or data carriers to support logistical efficiency. As noted in our RxGPS document, “Principles for Using Serialization,” it is necessary to understand each country’s goal in order to identify the best way to achieve that goal, as different identifiers can support different goals. This document provides an overview of the hierarchy of common identifiers to help regulators understand their role in meeting various policy objectives.

















