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Table of Contents: 2017 SEPTEMBER–OCTOBER No. 418

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RxNorm September 2017 Release Includes Additional Medi-Span Data

RxNorm September 2017 Release Includes Additional Medi-Span Data. NLM Tech Bull. 2017 Sep-Oct;(418):b3.

2017 September 05 [posted]
2017 September 29 [Editor's note added]

[Editor's note added September 29, 2017: Medi-Span data has been removed from RxNorm at Wolters Kluwer’s request. As of October 2017, Medi-Span data will not be included in the RxNorm or UMLS releases. If you have questions, please contact: medispan-support@wolterskluwer.com .]


The National Library of Medicine (NLM) is pleased to announce the addition of a more robust and comprehensive Medi-Span (MDDB) data set in the RxNorm September 2017 release.

Over 144,000 National Drug Codes (NDCs), 38,000 Generic Product Identifiers (GPIs), 38,000 branded drug names, and 5,000 ingredients from MDDB are included.

The additional MDDB drug information improves interoperability and helps facilitate the electronic exchange of drug information in electronic health records. MDDB is maintained and developed by Wolters Kluwer Clinical Drug Information.

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