The National Health Products Catalogue (NHPC) is a comprehensive and sophisticated information service that contains information on over 68,000 products, which includes more than 7,500 licensed and almost 5,000 unlicensed medicinal products available in Ireland. This includes pharmacy- and hospital-related products, prescription, and over-the-counter medicines, human and veterinary, as well as health and beauty, cosmetic and other front-of shop-products. Catalogues are designed to save you time accessing information, which means their reliability is essential. An electronic medicinal product catalogue is an electronic dictionary of medications available for prescribing and dispensing. The key purpose of the NHPC, and any medicinal product catalogue, is to provide a consistent, systematic approach to the identification and naming of medicines prescribed and dispensed, which can support medicines management, prescribing and dispensing activity across health domains. Furthermore, this consistency offers interoperability and easier exchange of information across health settings and importantly in transitions of care – e.g., community to ED to care settings and back into the community.