Dyphylline / ephedrine hydrochloride / guaifenesin / phenobarbital Oral Tablet [Lufyllin-EPG]
RxNorm 2658062

Concept Hierarchy & Relationship Mapping

RxNorm Concept Unique Identifier (RxCUI) 2658062 represents a standardized clinical drug concept used for cross-system interoperability. This concept aggregates multiple Atom IDs (AUIs), which are specific naming variations and synonyms used across pharmaceutical databases to ensure accurate medication mapping for: dyphylline / ephedrine hydrochloride / guaifenesin / phenobarbital Oral Tablet [Lufyllin-EPG].

The following semantic concepts and normalized strings are associated with this clinical entity:

TMSY
Dyphylline / ePHEDrine hydrochloride / guaiFENesin / PHENobarbital Oral Tablet [Lufyllin-EPG]
AUI:12848782
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TMSY

Tall Man Lettering Synonym (TMSY):
Dyphylline / ePHEDrine hydrochloride / guaiFENesin / PHENobarbital Oral Tablet [Lufyllin-EPG]
(Atom ID: 12848782)

Clinical Status & Identity

Prescribable Status
NO (Reference)
Part of the RxNorm Current Prescribable Content subset including all drugs available for prescription in the USA.
Concept Description
dyphylline / ePHEDrine hydrochloride / guaiFENesin / PHENobarbital Oral Tablet [Lufyllin-EPG]
Official description of the drug concept as defined in the source vocabulary.
Suppress Flag
N
N: Not suppressible | O: Obsolete | Y: Suppressed by editor | E: Unquantified non-prescribable drug.

Interoperability & Coding

Concept ID (RxCUI)
2658062
RxNorm Unique Identifier for the standardized concept.
Atom ID (RXAUI)
12848782
Unique identifier for this specific name variation (Atom).
Term Type (TTY)
TMSY
Tall Man Lettering Synonym (Tall Man Lettering synonym of another TTY, given to distinguish between commonly confused drugs.)
Source Code
2658062
The "Most useful" identifier asserted by the original source vocabulary.

Source & Registry Data

Source Name
RxNorm Vocabulary (RXNORM)
The official name and abbreviation for the vocabulary source.
Source Version
20AA_260601F
The specific version of the vocabulary provided by the source.
Update Date
June 01, 2026
The date when this RxNorm data was last updated by the NLM.
License Contact
RxNorm Customer Service, , U.S. National Library of Medicine, 8600 Rockville Pike, , Bethesda, MD, United States, 20894, (888) FIND-NLM, , https://support.nlm.nih.gov/support/create-case/, https://www.nlm.nih.gov/research/umls/rxnorm/
Source licensing contact information.