RxNorm · TMSY · 668635

668635

TMSY · Tall man synonym

guaiFENesin 800 MG / phenylephrine hydrochloride 30 MG Extended Release Oral Tablet

Concept

RxCUI668635

NameguaiFENesin 800 MG / phenylephrine hydrochloride 30 MG Extended Release Oral Tablet

Term typeTMSY · Tall man synonym

LanguageENG

SuppressO

Cross-maps

UMLS CUIC1813221

Synonyms

No additional synonyms recorded.

Related concepts

1743856 1 ML DEPO-Medrol 80 MG/ML Injection

207194 1 ML SandoSTATIN 0.05 MG/ML Injection

207198 1 ML SandoSTATIN 0.1 MG/ML Injection

1803669 1 daytime (acetaminophen 650 MG / dextromethorphan HBr 20 MG / phenylephrine HCl 10 MG per 30 ML Oral Solution) / 1 nighttime (acetaminophen 650 MG / diphenhydrAMINE HCl 25 MG / phenylephrine HCl 10 MG per 30 ML Oral Solution) Pack

1666116 1 daytime (brompheniramine maleate 1 MG / dextromethorphan HBr 5 MG / phenylephrine HCl 2.5 MG per 5 ML Oral Solution) / 1 nighttime (diphenhydrAMINE HCl 6.25 MG / phenylephrine HCl 2.5 MG per 5 ML Oral Solution) Pack

2362250 1 daytime (dextromethorphan HBr 20 MG / guaiFENesin 200 MG per 20 ML Oral Solution) / 1 nighttime (chlorpheniramine maleate 2 MG / dextromethorphan hydrobromide 15 MG per 10 ML Oral Solution) Pack

# same page, as API
GET api.autoicdapi.com/v1/reference/rxnorm/668635
GET api.autoicdapi.com/v1/translate?code=668635&from=rxnorm&to=umls

Common questions

What is the RxNorm code for guaiFENesin 800 MG / phenylephrine hydrochloride 30 MG Extended Release Oral Tablet?

guaiFENesin 800 MG / phenylephrine hydrochloride 30 MG Extended Release Oral Tablet is coded as 668635 in RxNorm.

What is RxNorm code 668635?

668635 is the RxNorm identifier for guaiFENesin 800 MG / phenylephrine hydrochloride 30 MG Extended Release Oral Tablet. It is included in the current monthly NLM RxNorm release.

What term type is RxCUI 668635?

668635 is a TMSY (Tall man synonym) in RxNorm.

What is the UMLS mapping for 668635?

668635 maps to UMLS C1813221.

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.

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Browsing concepts is free. Programmatic access at /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.