Quick lookup
Enter a drug name, RxCUI, or NDC. The search opens in RxNav, the National Library of Medicine's drug browser.
Opens in a new tab. NDCs work with or without hyphens.
Official sources
Public resources from the National Library of Medicine, the FDA, and the WHO Collaborating Centre. PRIME Analytics is not affiliated with these organizations.
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RxNav
Search, browse, and navigate RxNorm. Move between a drug's ingredients, strengths, brand names, and codes.
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RxNorm overview
Documentation for the RxNorm drug terminology, including how RxCUIs are assigned and how the data is released.
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RxNav APIs
Programmatic access for mapping drug names, RxCUIs, and NDCs at scale.
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FDA NDC Directory
The FDA's searchable list of listed drug products and their National Drug Codes.
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DailyMed
Current drug labels submitted to the FDA, searchable by name, NDC, or manufacturer.
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openFDA NDC API
Machine-readable access to the NDC Directory for analytic datasets.
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WHO ATC/DDD Index
Anatomical Therapeutic Chemical (ATC) codes and defined daily doses from the WHO Collaborating Centre for Drug Statistics Methodology. Free to search; reuse is subject to the Centre's copyright terms.
RxCUI, NDC, and ATC in one minute
RxCUI
An RxNorm Concept Unique Identifier names a drug concept, such as an ingredient, a strength and dose form, or a brand. It stays the same regardless of who makes the product.
NDC
A National Drug Code identifies a specific labeled product and package from a specific labeler. One RxCUI can map to many NDCs, which is why claims analyses link them.
ATC
The Anatomical Therapeutic Chemical code classifies a drug by the organ system it acts on and its therapeutic and chemical properties. It groups drugs, such as all statins, across brands and manufacturers.