Metaproterenol sulfate 650 mcg/INHAL Metered Dose Inhaler, 200 Actuations
RxNorm 991632

Concept Hierarchy & Relationship Mapping

RxNorm Concept Unique Identifier (RxCUI) 991632 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: metaproterenol sulfate 650 mcg/INHAL Metered Dose Inhaler, 200 Actuations.

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

SCD
200 ACTUAT metaproterenol sulfate 0.65 mg/ACTUAT Metered Dose Inhaler
Primary clinical definition
AUI:12344255
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SY
Metaproterenol sulfate 0.65 mg/ACTUAT Metered Dose Inhaler, 200 ACTUAT
AUI:3281398
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PSN
Metaproterenol sulfate 650 mcg/INHAL Metered Dose Inhaler, 200 Actuations
AUI:6367457
View

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

SCD

Semantic Clinical Drug (SCD):
200 ACTUAT metaproterenol sulfate 0.65 mg/ACTUAT Metered Dose Inhaler
(Atom ID: 12344255)

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
200 ACTUAT metaproterenol sulfate 0.65 MG/ACTUAT Metered Dose Inhaler
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)
991632
RxNorm Unique Identifier for the standardized concept.
Atom ID (RXAUI)
12344255
Unique identifier for this specific name variation (Atom).
Term Type (TTY)
SCD
Semantic Clinical Drug (Ingredient + Strength + Dose Form)
Source Code
991632
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 OBSOLETED
04/30/2020
Date the RxNorm atom became obsolete
RXN QUANTITY
200 ACTUAT
Normal Form quantity factor
RXTERM FORM
MDI
The RxTerm dose form name for this drug
SY

Synonym (SY):
Metaproterenol sulfate 0.65 mg/ACTUAT Metered Dose Inhaler, 200 ACTUAT
(Atom ID: 3281398)

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
metaproterenol sulfate 0.65 MG/ACTUAT Metered Dose Inhaler, 200 ACTUAT
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)
991632
RxNorm Unique Identifier for the standardized concept.
Atom ID (RXAUI)
3281398
Unique identifier for this specific name variation (Atom).
Term Type (TTY)
SY
Synonym (Synonym of another TTY, given for clarity.)
Source Code
991632
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.
PSN

Prescribable Name (PSN):
Metaproterenol sulfate 650 mcg/INHAL Metered Dose Inhaler, 200 Actuations
(Atom ID: 6367457)

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
metaproterenol sulfate 650 MCG/INHAL Metered Dose Inhaler, 200 Actuations
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)
991632
RxNorm Unique Identifier for the standardized concept.
Atom ID (RXAUI)
6367457
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
991632
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.