EPINEPHrine 0.22 mg/INHAL Metered Dose Inhaler, 125 Actuations
RxNorm 1658178

Concept Hierarchy & Relationship Mapping

RxNorm Concept Unique Identifier (RxCUI) 1658178 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: EPINEPHrine 0.22 mg/INHAL Metered Dose Inhaler, 125 Actuations.

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

SCD
125 ACTUAT epinephrine 0.22 mg/ACTUAT Metered Dose Inhaler
Primary clinical definition
AUI:12350124
View
TMSY
125 ACTUAT EPINEPHrine 0.22 mg/ACTUAT Metered Dose Inhaler
AUI:7253970
View
SY
Epinephrine (as racepinephrine HCl) 0.22 mg/ACTUAT Metered Dose Inhaler, 125 ACTUAT
AUI:7252468
View
TMSY
EPINEPHrine (as racepinephrine HCl) 0.22 mg/ACTUAT Metered Dose Inhaler, 125 ACTUAT
AUI:7253967
View
PSN
EPINEPHrine 0.22 mg/INHAL Metered Dose Inhaler, 125 Actuations
AUI:7252469
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):
125 ACTUAT epinephrine 0.22 mg/ACTUAT Metered Dose Inhaler
(Atom ID: 12350124)

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
125 ACTUAT epinephrine 0.22 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)
1658178
RxNorm Unique Identifier for the standardized concept.
Atom ID (RXAUI)
12350124
Unique identifier for this specific name variation (Atom).
Term Type (TTY)
SCD
Semantic Clinical Drug (Ingredient + Strength + Dose Form)
Source Code
1658178
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
{331888} 3992
RXCUI of BOSS Active Ingredient preceded by RXCUI of SCDC responsible for value
RXN AM
{331888} 3992
RXCUI of BOSS Active Moiety preceded by RXCUI of SCDC responsible for value
RXN BOSS FROM
{331888} AI
Source of BOSS as either from the active ingredient (AI) or the active moiety (AM) preceded by RXCUI of SCDC responsible for value
RXN OBSOLETED
07/01/2020
Date the RxNorm atom became obsolete
RXN QUANTITY
125 ACTUAT
Normal Form quantity factor
RXTERM FORM
MDI
The RxTerm dose form name for this drug
TMSY

Tall Man Lettering Synonym (TMSY):
125 ACTUAT EPINEPHrine 0.22 mg/ACTUAT Metered Dose Inhaler
(Atom ID: 7253970)

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
125 ACTUAT EPINEPHrine 0.22 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)
1658178
RxNorm Unique Identifier for the standardized concept.
Atom ID (RXAUI)
7253970
Unique identifier for this specific name variation (Atom).
Term Type (TTY)
TMSY
Tall Man Lettering Synonym (Tall Man Lettering synonym of another TTY, given to distinguish between commonly confused drugs.)
Source Code
1658178
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.
SY

Synonym (SY):
Epinephrine (as racepinephrine HCl) 0.22 mg/ACTUAT Metered Dose Inhaler, 125 ACTUAT
(Atom ID: 7252468)

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
epinephrine (as racepinephrine HCl) 0.22 MG/ACTUAT Metered Dose Inhaler, 125 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)
1658178
RxNorm Unique Identifier for the standardized concept.
Atom ID (RXAUI)
7252468
Unique identifier for this specific name variation (Atom).
Term Type (TTY)
SY
Synonym (Synonym of another TTY, given for clarity.)
Source Code
1658178
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.
TMSY

Tall Man Lettering Synonym (TMSY):
EPINEPHrine (as racepinephrine HCl) 0.22 mg/ACTUAT Metered Dose Inhaler, 125 ACTUAT
(Atom ID: 7253967)

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
EPINEPHrine (as racepinephrine HCl) 0.22 MG/ACTUAT Metered Dose Inhaler, 125 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)
1658178
RxNorm Unique Identifier for the standardized concept.
Atom ID (RXAUI)
7253967
Unique identifier for this specific name variation (Atom).
Term Type (TTY)
TMSY
Tall Man Lettering Synonym (Tall Man Lettering synonym of another TTY, given to distinguish between commonly confused drugs.)
Source Code
1658178
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):
EPINEPHrine 0.22 mg/INHAL Metered Dose Inhaler, 125 Actuations
(Atom ID: 7252469)

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
EPINEPHrine 0.22 MG/INHAL Metered Dose Inhaler, 125 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)
1658178
RxNorm Unique Identifier for the standardized concept.
Atom ID (RXAUI)
7252469
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
1658178
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.