1668264
PSN · Prescribable nameerythromycin lactobionate 500 MG Injection
Concept
RxCUI1668264
Nameerythromycin lactobionate 500 MG Injection
Term typePSN · Prescribable name
LanguageENG
Synonyms
No additional synonyms recorded.
Related concepts
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12360031 daytime (acetaminophen 325 MG / chlorpheniramine maleate 2 MG / phenylephrine hydrochloride 5 MG Oral Tablet) / 1 nighttime (acetaminophen 325 MG / diphenhydrAMINE hydrochloride 25 MG / phenylephrine hydrochloride 5 MG Oral Tablet) Pack
26345621 daytime (acetaminophen 325 MG / dextromethorphan HBr 10 MG / guaiFENesin 100 MG / phenylephrine HCl 5 MG Oral Tablet) / 1 nighttime (acetaminophen 325 MG / diphenhydrAMINE HCl 25 MG / phenylephrine HCl 5 MG Oral Tablet) Pack
26343641 daytime (acetaminophen 325 MG / dextromethorphan HBr 10 MG / guaiFENesin 200 MG / phenylephrine HCl 5 MG Oral Capsule) / 1 nighttime (acetaminophen 325 MG / dextromethorphan HBr 10 MG / doxylamine succinate 6.25 MG / phenylephrine HCl 5 MG Oral Capsule) Pack
# same page, as API
GET autoicdapi.com/api/v1/reference/rxnorm/1668264
GET autoicdapi.com/api/v1/translate?code=1668264&from=rxnorm&to=umls
Common questions
What is the RxNorm code for erythromycin lactobionate 500 MG Injection?
erythromycin lactobionate 500 MG Injection is coded as 1668264 in RxNorm.
What is RxNorm code 1668264?
1668264 is the RxNorm identifier for erythromycin lactobionate 500 MG Injection. It is included in the current monthly NLM RxNorm release.
What term type is RxCUI 1668264?
1668264 is a PSN (Prescribable name) in RxNorm.
What is the SNOMED CT mapping for 1668264?
1668264 maps to 4 SNOMED CT codes (370964002, 376174006, 376175007, 785941003).
What is the UMLS mapping for 1668264?
1668264 maps to UMLS C1672501.
RxNorm, plainly answered
What is RxNorm?
RxNorm is the NLM's normalized naming system for clinical drugs and dose forms. It collapses brand variants, packaging differences, and source-vocabulary noise into a single, stable identifier (RxCUI) per concept, with explicit links to ingredients, brands, and clinical drug forms.
What are RxCUIs?
An RxCUI is the persistent ID for a single RxNorm concept. The same RxCUI keeps pointing at the same drug concept release after release, even when names or sources change. That stability is what makes RxNorm useful for medication reconciliation and analytics.
How does RxNorm relate to NDC codes?
NDC codes describe a specific package SKU at a specific manufacturer. RxNorm describes the clinically relevant drug. One RxCUI can map to dozens of NDCs (different manufacturers, different package sizes), and we list those NDC mappings on each concept page.
How does RxNorm cross-map to other standards?
RxNorm concepts carry direct links to UMLS CUIs and SNOMED CT product codes when available. Through the UMLS bridge they can also reach ICD-10 codes (for instance, for indication-based coding) and LOINC observations. Our API exposes all of this on the cross_references field.
Is the API free to use?
Browsing concepts is free. Programmatic access at /api/v1/reference/rxnorm/* requires an API key. RxNorm itself is in the public domain, so there is no upstream license fee, but our bandwidth and uptime are not.
How fresh is the RxNorm data?
RxNorm releases monthly. We rebuild within a few business days of each release, and the concept-id history is preserved so previous lookups continue to resolve.