Interferon beta-1b 0.3 mg [Extavia]
RxNorm 1721328

Concept Hierarchy & Relationship Mapping

RxNorm Concept Unique Identifier (RxCUI) 1721328 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: interferon beta-1b 0.3 mg [Extavia].

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

SBDC
Interferon beta-1b 0.3 mg [Extavia]
AUI:7706847
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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.

SBDCPrescribable

Semantic Branded Drug Component (SBDC):
Interferon beta-1b 0.3 mg [Extavia]
(Atom ID: 7706847)

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
interferon beta-1b 0.3 MG [Extavia]
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)
1721328
RxNorm Unique Identifier for the standardized concept.
Atom ID (RXAUI)
7706847
Unique identifier for this specific name variation (Atom).
Term Type (TTY)
SBDC
Semantic Branded Drug Component (Ingredient + Strength + Brand Name)
Source Code
1721328
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.

Patient Education

Interferon Beta-1b Injection


Interferon beta-1b injection is used to reduce episodes of symptoms in patients with relapsing-remitting (course of disease where symptoms flare up from time to time) of multiple sclerosis (MS, a disease in which the nerves do not function properly and patients may experience weakness, numbness, loss of muscle coordination and problems with vision, speech, and bladder control). Interferon beta-1b is in a class of medications called immunomodulators. It is not known exactly how interferon beta-1b works to treat MS.
[Learn More]


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