Chlordiazepoxide hydrochloride 5 mg / methscopolamine nitrate 2.5 mg Oral Capsule [Librax Reformulated Aug 2006]
RxNorm 905511

Concept Hierarchy & Relationship Mapping

RxNorm Concept Unique Identifier (RxCUI) 905511 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: chlordiazepoxide hydrochloride 5 mg / methscopolamine nitrate 2.5 mg Oral Capsule [Librax Reformulated Aug 2006].

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

SBD
Chlordiazepoxide hydrochloride 5 mg / methscopolamine nitrate 2.5 mg Oral Capsule [Librax Reformulated Aug 2006]
AUI:12362499
View
TMSY
ChlordiazePOXIDE hydrochloride 5 mg / methscopolamine nitrate 2.5 mg Oral Capsule [Librax Reformulated Aug 2006]
AUI:12380299
View
SY
Librax Reformulated Aug 2006 (chlordiazepoxide HCl 5 mg / methscopolamine nitrate 2.5 mg) Oral Capsule
AUI:11835453
View
TMSY
Librax Reformulated Aug 2006 (chlordiazePOXIDE HCl 5 mg / methscopolamine nitrate 2.5 mg) Oral Capsule
AUI:11836149
View

This clinical crossover tool is designed for healthcare professionals, pharmacists, and data analysts to safely compare substitute products and manage medication interoperability.

SBD

Semantic Branded Drug (SBD):
Chlordiazepoxide hydrochloride 5 mg / methscopolamine nitrate 2.5 mg Oral Capsule [Librax Reformulated Aug 2006]
(Atom ID: 12362499)

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
chlordiazepoxide hydrochloride 5 MG / methscopolamine nitrate 2.5 MG Oral Capsule [Librax Reformulated Aug 2006]
Official description of the drug concept as defined in the source vocabulary.
Suppress Flag
O
N: Not suppressible | O: Obsolete | Y: Suppressed by editor | E: Unquantified non-prescribable drug.

Interoperability & Coding

Concept ID (RxCUI)
905511
RxNorm Unique Identifier for the standardized concept.
Atom ID (RXAUI)
12362499
Unique identifier for this specific name variation (Atom).
Term Type (TTY)
SBD
Semantic Branded Drug (Ingredient + Strength + Dose Form + Brand Name)
Source Code
905511
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.

Technical Attributes & Logic

RXN AI
{857650} 857649
RXCUI of BOSS Active Ingredient preceded by RXCUI of SCDC responsible for value
RXN AI
{889613} 203173
RXCUI of BOSS Active Ingredient preceded by RXCUI of SCDC responsible for value
RXN AM
{857650} 89785
RXCUI of BOSS Active Moiety preceded by RXCUI of SCDC responsible for value
RXN AM
{889613} 2356
RXCUI of BOSS Active Moiety preceded by RXCUI of SCDC responsible for value
RXN BOSS FROM
{857650} AI
Source of BOSS as either from the active ingredient (AI) or the active moiety (AM) preceded by RXCUI of SCDC responsible for value
RXN BOSS FROM
{889613} AI
Source of BOSS as either from the active ingredient (AI) or the active moiety (AM) preceded by RXCUI of SCDC responsible for value
RXN OBSOLETED
04/30/2020
Date the RxNorm atom became obsolete
RXTERM FORM
Cap
The RxTerm dose form name for this drug
TMSY

Tall Man Lettering Synonym (TMSY):
ChlordiazePOXIDE hydrochloride 5 mg / methscopolamine nitrate 2.5 mg Oral Capsule [Librax Reformulated Aug 2006]
(Atom ID: 12380299)

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
chlordiazePOXIDE hydrochloride 5 MG / methscopolamine nitrate 2.5 MG Oral Capsule [Librax Reformulated Aug 2006]
Official description of the drug concept as defined in the source vocabulary.
Suppress Flag
O
N: Not suppressible | O: Obsolete | Y: Suppressed by editor | E: Unquantified non-prescribable drug.

Interoperability & Coding

Concept ID (RxCUI)
905511
RxNorm Unique Identifier for the standardized concept.
Atom ID (RXAUI)
12380299
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
905511
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.
SY

Synonym (SY):
Librax Reformulated Aug 2006 (chlordiazepoxide HCl 5 mg / methscopolamine nitrate 2.5 mg) Oral Capsule
(Atom ID: 11835453)

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
Librax Reformulated Aug 2006 (chlordiazepoxide HCl 5 MG / methscopolamine nitrate 2.5 MG) Oral Capsule
Official description of the drug concept as defined in the source vocabulary.
Suppress Flag
O
N: Not suppressible | O: Obsolete | Y: Suppressed by editor | E: Unquantified non-prescribable drug.

Interoperability & Coding

Concept ID (RxCUI)
905511
RxNorm Unique Identifier for the standardized concept.
Atom ID (RXAUI)
11835453
Unique identifier for this specific name variation (Atom).
Term Type (TTY)
SY
Synonym (Synonym of another TTY, given for clarity.)
Source Code
905511
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.
TMSY

Tall Man Lettering Synonym (TMSY):
Librax Reformulated Aug 2006 (chlordiazePOXIDE HCl 5 mg / methscopolamine nitrate 2.5 mg) Oral Capsule
(Atom ID: 11836149)

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
Librax Reformulated Aug 2006 (chlordiazePOXIDE HCl 5 MG / methscopolamine nitrate 2.5 MG) Oral Capsule
Official description of the drug concept as defined in the source vocabulary.
Suppress Flag
O
N: Not suppressible | O: Obsolete | Y: Suppressed by editor | E: Unquantified non-prescribable drug.

Interoperability & Coding

Concept ID (RxCUI)
905511
RxNorm Unique Identifier for the standardized concept.
Atom ID (RXAUI)
11836149
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
905511
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.