Fidaxomicin 40 mg/ML
RxNorm 2279840

Concept Hierarchy & Relationship Mapping

RxNorm Concept Unique Identifier (RxCUI) 2279840 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: fidaxomicin 40 mg/ML.

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

SCDC
Fidaxomicin 40 mg/ML
AUI:11828473
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This clinical crossover tool is designed for healthcare professionals, pharmacists, and data analysts to safely compare substitute products and manage medication interoperability.

SCDCPrescribable

Semantic Clinical Drug Component (SCDC):
Fidaxomicin 40 mg/ML
(Atom ID: 11828473)

Clinical Status & Identity

Prescribable Status
YES (Active)
Part of the RxNorm Current Prescribable Content subset including all drugs available for prescription in the USA.
Concept Description
fidaxomicin 40 MG/ML
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)
2279840
RxNorm Unique Identifier for the standardized concept.
Atom ID (RXAUI)
11828473
Unique identifier for this specific name variation (Atom).
Term Type (TTY)
SCDC
Semantic Clinical Drug Component (Ingredient + Strength)
Source Code
2279840
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 BOSS STRENGTH DENOM UNIT
ML
RXN Boss Strength Denom Unit
RXN BOSS STRENGTH DENOM VALUE
1
RXN Boss Strength Denom Value
RXN BOSS STRENGTH NUM UNIT
MG
RXN Boss Strength Num Unit
RXN BOSS STRENGTH NUM VALUE
40
RXN Boss Strength Num Value
RXN STRENGTH
40 MG/ML
Strength plus unit of SCDC

Patient Education

Fidaxomicin


Fidaxomicin is used to treat diarrhea caused by Clostridium difficile (C. difficile; a type of bacteria that may cause severe or life-threatening diarrhea) in adults and children 6 months of age and older. Fidaxomicin is in a class of medications called macrolide antibiotics. It works by killing bacteria in the intestines. Fidaxomicin will not treat infections in any other part of the body. Antibiotics such as fidaxomicin will not work for colds, flu, or other viral infections. Taking antibiotics when they are not needed increases your risk of getting an infection later that resists antibiotic treatment.
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