RxNorm Release Notes - May 4, 2026
Sources
The following sources have been updated since the previous RxNorm release:
| Source Name | SAB | Version |
|---|---|---|
| Vaccines Administered | CVX | CVX_2026_04_21 |
| DrugBank | DRUGBANK | DRUGBANK5.0_2026_04_01 |
| Gold Standard Drug Database | GS | GS_2026_04_10 |
| Oracle Health Multum Drug Database | MMSL | MMSL_2026_04_01 |
| Micromedex RED BOOK | MMX | MMX_2026_04_03 |
| Metathesaurus FDA Structured Product Labels | MTHSPL | MTHSPL_2026_04_25 |
| FDB MedKnowledge (formerly NDDF Plus) | NDDF | NDDF_2026_04_08 |
| RxNorm Vocabulary | RXNORM | RXNORM_20AA_260504F |
| Veterans Health Administration National Drug File | VANDF | VANDF_2026_03_31 |
The following sources have not been updated since the previous RxNorm release:
| Source Name | SAB | Version |
|---|---|---|
| Anatomical Therapeutic Chemical Classification System | ATC | ATC_2026 |
| Metathesaurus CMS Formulary Reference File | MTHCMSFRF | MTHCMSFRF_2020 |
| US Edition of SNOMED CT | SNOMEDCT_US | SNOMEDCT_US_2026_01_31 |
| USP Compendial Nomenclature | USP | USP_2026_02_24 |
RxNorm Data Changes
No major changes.
Data Counts
| Term Type or Attribute | Number |
|---|---|
| Active RXNORM GPCKs | 648 |
| Active RXNORM BPCKs | 741 |
| Active RXNORM SCDs | 17547 |
| Active RXNORM SBDs | 9681 |
| Active RXNORM MINs | 3832 |
| Active RXNORM INs | 14632 |
| Active RXNORM PINs | 3634 |
| Active RXNORM BNs | 5101 |
| Active RXNORM DFs | 126 |
| Obsolete RXNORM GPCKs | 270 |
| Obsolete RXNORM BPCKs | 265 |
| Obsolete RXNORM SCDs | 20230 |
| Obsolete RXNORM SBDs | 12498 |
| Obsolete RXNORM MINs | 0 |
| Obsolete RXNORM INs | 0 |
| Obsolete RXNORM PINs | 0 |
| Obsolete RXNORM BNs | 6765 |
| Obsolete RXNORM DFs | 65 |
| Editor-suppressed RXNORM SCDs | 2163 |
| Editor-suppressed RXNORM SBDs | 1805 |
| SAB=RXNORM NDCs | 247925 |
| Distinct SAB=RXNORM NDCs | 247925 |
Last Reviewed: May 4, 2026