Xopenex HFA 45 mcg/INHAL Metered Dose Inhaler, 200 Actuations
RxNorm 746466

Concept Hierarchy & Relationship Mapping

RxNorm Concept Unique Identifier (RxCUI) 746466 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: Xopenex HFA 45 mcg/INHAL Metered Dose Inhaler, 200 Actuations.

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

SBD
200 ACTUAT levalbuterol 0.045 mg/ACTUAT Metered Dose Inhaler [Xopenex]
AUI:12365298
View
SY
Xopenex 0.045 mg/ACTUAT (levalbuterol tartrate 0.059 mg/ACTUAT) Metered Dose Inhaler, 200 ACTUAT
AUI:3272553
View
SY
Xopenex 45 mcg/ACTUAT Metered Dose Inhaler, 200 ACTUAT
AUI:2989691
View
PSN
Xopenex HFA 45 mcg/INHAL Metered Dose Inhaler, 200 Actuations
AUI:6371400
View

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

SBDPrescribable

Semantic Branded Drug (SBD):
200 ACTUAT levalbuterol 0.045 mg/ACTUAT Metered Dose Inhaler [Xopenex]
(Atom ID: 12365298)

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
200 ACTUAT levalbuterol 0.045 MG/ACTUAT Metered Dose Inhaler [Xopenex]
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)
746466
RxNorm Unique Identifier for the standardized concept.
Atom ID (RXAUI)
12365298
Unique identifier for this specific name variation (Atom).
Term Type (TTY)
SBD
Semantic Branded Drug (Ingredient + Strength + Dose Form + Brand Name)
Source Code
746466
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
{597907} 487066
RXCUI of BOSS Active Ingredient preceded by RXCUI of SCDC responsible for value
RXN AM
{597907} 237159
RXCUI of BOSS Active Moiety preceded by RXCUI of SCDC responsible for value
RXN AVAILABLE STRENGTH
0.045 MG/ACTUAT
Available drug strengths listed in the order of ingredients from the drug
RXN BOSS FROM
{597907} AM
Source of BOSS as either from the active ingredient (AI) or the active moiety (AM) preceded by RXCUI of SCDC responsible for value
RXN HUMAN DRUG
US
Drug available for use in Humans
RXN QUANTITY
200 ACTUAT
Normal Form quantity factor
RXTERM FORM
MDI
The RxTerm dose form name for this drug
SYPrescribable

Synonym (SY):
Xopenex 0.045 mg/ACTUAT (levalbuterol tartrate 0.059 mg/ACTUAT) Metered Dose Inhaler, 200 ACTUAT
(Atom ID: 3272553)

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
Xopenex 0.045 MG/ACTUAT (levalbuterol tartrate 0.059 MG/ACTUAT) Metered Dose Inhaler, 200 ACTUAT
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)
746466
RxNorm Unique Identifier for the standardized concept.
Atom ID (RXAUI)
3272553
Unique identifier for this specific name variation (Atom).
Term Type (TTY)
SY
Synonym (Synonym of another TTY, given for clarity.)
Source Code
746466
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.
SYPrescribable

Synonym (SY):
Xopenex 45 mcg/ACTUAT Metered Dose Inhaler, 200 ACTUAT
(Atom ID: 2989691)

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
Xopenex 45 MCG/ACTUAT Metered Dose Inhaler, 200 ACTUAT
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)
746466
RxNorm Unique Identifier for the standardized concept.
Atom ID (RXAUI)
2989691
Unique identifier for this specific name variation (Atom).
Term Type (TTY)
SY
Synonym (Synonym of another TTY, given for clarity.)
Source Code
746466
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.
PSNPrescribable

Prescribable Name (PSN):
Xopenex HFA 45 mcg/INHAL Metered Dose Inhaler, 200 Actuations
(Atom ID: 6371400)

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
Xopenex HFA 45 MCG/INHAL Metered Dose Inhaler, 200 Actuations
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)
746466
RxNorm Unique Identifier for the standardized concept.
Atom ID (RXAUI)
6371400
Unique identifier for this specific name variation (Atom).
Term Type (TTY)
PSN
Prescribable Name (Synonym of another TTY, given for clarity and for display purposes in electronic prescribing applications. Only one PSN per concept.)
Source Code
746466
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

Levalbuterol Oral Inhalation


Levalbuterol is used to prevent or relieve the wheezing, shortness of breath, coughing, and chest tightness caused by lung disease such as asthma and chronic obstructive pulmonary disease (COPD; a group of diseases that affect the lungs and airways). Levalbuterol is in a class of medications called beta agonists. It works by relaxing and opening air passages to the lungs to make breathing easier.
[Learn More]


* Please review the disclaimer below.