Cromolyn Metered Dose Inhaler
RxNorm 746181

Concept Hierarchy & Relationship Mapping

RxNorm Concept Unique Identifier (RxCUI) 746181 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: cromolyn Metered Dose Inhaler.

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

SCDF
Cromolyn Metered Dose Inhaler
AUI:12265242
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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.

SCDF

Semantic Clinical Drug Form (SCDF):
Cromolyn Metered Dose Inhaler
(Atom ID: 12265242)

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
cromolyn Metered Dose Inhaler
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)
746181
RxNorm Unique Identifier for the standardized concept.
Atom ID (RXAUI)
12265242
Unique identifier for this specific name variation (Atom).
Term Type (TTY)
SCDF
Semantic Clinical Drug Form (Ingredient + Dose Form)
Source Code
746181
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

Cromolyn Oral Inhalation


Cromolyn oral inhalation is used to prevent the wheezing, shortness of breath, difficulty breathing, coughing, and chest tightness caused by asthma. It also is used to prevent breathing difficulties (bronchospasm) caused by exercise, cold and dry air, or by inhaling substances such as pet dander, pollen, dust mites, or chemicals, such as perfume. It works by preventing the release of substances that cause inflammation (swelling) in the air passages of the lungs.
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