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Unified Medical Language System® (UMLS®)

RxNorm Release Notes

July Release - 07/07/2014

This release of RxNorm is consistent with the 2014AA UMLS Metathesaurus release. For additional information about RxNorm releases, including scripts for loading the RxNorm data into Oracle and MySQL databases, read the RxNorm technical documentation.


The following sources have been updated since the previous RxNorm release:

Source NameSABDate Updated
Gold Standard Drug Database GS 06/02/2014
Medi-Span Master Drug Data Base MDDB 06/04/2014
Multum MediSource Lexicon MMSL 06/01/2014
Micromedex RED BOOK MMX 06/02/2014
FDA Structured Product Labels MTHSPL 06/30/2014
FDB MedKnowledge (formerly NDDF Plus) NDDF 06/04/2014
Veterans Health Administration National Drug File - Reference Terminology NDFRT 07/07/2014
NDFRT FDASPL relationships NDFRT_FDASPL 07/07/2014
NDFRT FMTSME relationships NDFRT_FMTSME 07/07/2014
Veterans Health Administration National Drug File VANDF 05/21/2014


The following sources have not been updated in this release:

Source NameSABDate Updated
Anatomical Therapeutic Chemical Classification System ATC 2014
Medical Subject Headings (MeSH) MSH 02/10/2014
FDA National Drug Code Directory MTHFDA 06/01/2011
US Edition of SNOMED CT (drug information) SNOMEDCT_US 01/31/2014

Data Changes

Prescribable Names:
RxNorm includes a new prescribable name term type (TTY=PSN). Prescribable names are user-friendly synonyms of RxNorm SCD/SBD/GPCK/BPCK concepts and are meant to be used as display names in e-prescribing systems. Unlike with other RxNorm synonyms (TTY=SY and TTY=TMSY), there can only be a single prescribable name associated with an RxNorm concept (i.e., RXCUI). RxNorm editors create prescribable names based upon the drug packaging in the Structured Product Labels (SPLs) on DailyMed (// Prescribable names may contain common ingredient abbreviations and tall man lettering, and their strengths may not be normalized as they are in the SCD/SBD/GPCK/BPCK names.

The July release of RxNorm includes prescribable names for many drugs with solid oral and inhalant dose forms. RxNorm editors will continue creating prescribable names, expanding to drugs with other dose forms. These prescribable names will be added to RxNorm releases in the coming months.

The National Library of Medicine (NLM) would like to thank the US Department of Veterans Affairs, Veterans Health Administration (VHA) for help with funding this project and the National Council For Prescription Drug Programs (NCPDP) for help with organizing content discussions with stakeholders. The addition of prescribable names to RxNorm is a major step towards improving the efficiency and accuracy of drug information management in e-prescribing systems.

Oral Dose Forms:
RxNorm editors modified several dose forms to include the ‘Oral’ route of administration:

  • Disintegrating Tablet > Disintegrating Oral Tablet
  • Extended Release Capsule > Extended Release Oral Capsule
  • Extended Release Tablet > Extended Release Oral Tablet
  • Flakes > Oral Flakes
  • Wafer > Oral Wafer
  • Lozenge > Oral Lozenge
  • Granules > Oral Granules
  • Pellet > Oral Pellet
  • Crystals > Oral Crystals

The strings of RxNorm concepts using these dose forms have been updated, but their RXCUIs remain unchanged.

New Dose Forms:
RxNorm editors added the following dose forms:

  • Granules for Oral Solution
  • Granules for Oral Suspension
  • Powder for Nasal Solution
  • Powder for Oral Solution
  • Powder for Oral Suspension

These dose forms have not been applied to any SCD/SBD/GPCK/BPCK concepts in this release.

Data Counts

Term Type or AttributeNumber
Active GPCKs 341
Active BPCKs 426
Active SCDs 19700
Active SBDs 10803
Active RXNORM MINs 3891
Active RXNORM INs 9867
Active RXNORM PINs 2276
Active RXNORM BNs 6721
Active RXNORM DFs 102
Obsolete GPCKs 136
Obsolete BPCKs 129
Obsolete SCDs 14568
Obsolete SBDs 10314
Obsolete RXNORM MINs 0
Obsolete RXNORM INs 0
Obsolete RXNORM PINs 0
Obsolete RXNORM BNs 9445
Obsolete RXNORM DFs 58
Editor-suppressed SCDs 1070
Editor-suppressed SBDs 938
OCD atoms 329308
Source-asserted NDCs 1300951
Distinct source-asserted NDCs 587377
Distinct SAB=RXNORM NDCs 201074

Last Reviewed: July 7, 2014