Sominex Pain Relief Formula 500 mg / 25 mg Oral Tablet
RxNorm 1092387

Concept Hierarchy & Relationship Mapping

RxNorm Concept Unique Identifier (RxCUI) 1092387 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: Sominex Pain Relief Formula 500 mg / 25 mg Oral Tablet.

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

SBD
Acetaminophen 500 mg / diphenhydramine hydrochloride 25 mg Oral Tablet [Sominex Pain Relief]
AUI:12360082
View
TMSY
Acetaminophen 500 mg / diphenhydrAMINE hydrochloride 25 mg Oral Tablet [Sominex Pain Relief]
AUI:12384132
View
SY
APAP 500 mg / Diphenhydramine Hydrochloride 25 mg Oral Tablet [Sominex Pain Relief]
AUI:3858314
View
TMSY
APAP 500 mg / diphenhydrAMINE Hydrochloride 25 mg Oral Tablet [Sominex Pain Relief]
AUI:3859016
View
SY
Sominex Pain Relief Formula (APAP 500 mg / diphenhydramine hydrochloride 25 mg) Oral Tablet
AUI:3623152
View
TMSY
Sominex Pain Relief Formula (APAP 500 mg / diphenhydrAMINE hydrochloride 25 mg) Oral Tablet
AUI:3731612
View
PSN
Sominex Pain Relief Formula 500 mg / 25 mg Oral Tablet
AUI:8219132
View

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

SBD

Semantic Branded Drug (SBD):
Acetaminophen 500 mg / diphenhydramine hydrochloride 25 mg Oral Tablet [Sominex Pain Relief]
(Atom ID: 12360082)

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
acetaminophen 500 MG / diphenhydramine hydrochloride 25 MG Oral Tablet [Sominex Pain Relief]
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)
1092387
RxNorm Unique Identifier for the standardized concept.
Atom ID (RXAUI)
12360082
Unique identifier for this specific name variation (Atom).
Term Type (TTY)
SBD
Semantic Branded Drug (Ingredient + Strength + Dose Form + Brand Name)
Source Code
1092387
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
{315266} 161
RXCUI of BOSS Active Ingredient preceded by RXCUI of SCDC responsible for value
RXN AI
{901813} 1362
RXCUI of BOSS Active Ingredient preceded by RXCUI of SCDC responsible for value
RXN AM
{315266} 161
RXCUI of BOSS Active Moiety preceded by RXCUI of SCDC responsible for value
RXN AM
{901813} 3498
RXCUI of BOSS Active Moiety preceded by RXCUI of SCDC responsible for value
RXN BOSS FROM
{315266} 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 BOSS FROM
{901813} 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
04/30/2020
Date the RxNorm atom became obsolete
RXTERM FORM
Tab
The RxTerm dose form name for this drug
TMSY

Tall Man Lettering Synonym (TMSY):
Acetaminophen 500 mg / diphenhydrAMINE hydrochloride 25 mg Oral Tablet [Sominex Pain Relief]
(Atom ID: 12384132)

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
acetaminophen 500 MG / diphenhydrAMINE hydrochloride 25 MG Oral Tablet [Sominex Pain Relief]
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)
1092387
RxNorm Unique Identifier for the standardized concept.
Atom ID (RXAUI)
12384132
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
1092387
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):
APAP 500 mg / Diphenhydramine Hydrochloride 25 mg Oral Tablet [Sominex Pain Relief]
(Atom ID: 3858314)

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
APAP 500 MG / Diphenhydramine Hydrochloride 25 MG Oral Tablet [Sominex Pain Relief]
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)
1092387
RxNorm Unique Identifier for the standardized concept.
Atom ID (RXAUI)
3858314
Unique identifier for this specific name variation (Atom).
Term Type (TTY)
SY
Synonym (Synonym of another TTY, given for clarity.)
Source Code
1092387
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):
APAP 500 mg / diphenhydrAMINE Hydrochloride 25 mg Oral Tablet [Sominex Pain Relief]
(Atom ID: 3859016)

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
APAP 500 MG / diphenhydrAMINE Hydrochloride 25 MG Oral Tablet [Sominex Pain Relief]
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)
1092387
RxNorm Unique Identifier for the standardized concept.
Atom ID (RXAUI)
3859016
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
1092387
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):
Sominex Pain Relief Formula (APAP 500 mg / diphenhydramine hydrochloride 25 mg) Oral Tablet
(Atom ID: 3623152)

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
Sominex Pain Relief Formula (APAP 500 MG / diphenhydramine hydrochloride 25 MG) Oral Tablet
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)
1092387
RxNorm Unique Identifier for the standardized concept.
Atom ID (RXAUI)
3623152
Unique identifier for this specific name variation (Atom).
Term Type (TTY)
SY
Synonym (Synonym of another TTY, given for clarity.)
Source Code
1092387
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):
Sominex Pain Relief Formula (APAP 500 mg / diphenhydrAMINE hydrochloride 25 mg) Oral Tablet
(Atom ID: 3731612)

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
Sominex Pain Relief Formula (APAP 500 MG / diphenhydrAMINE hydrochloride 25 MG) Oral Tablet
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)
1092387
RxNorm Unique Identifier for the standardized concept.
Atom ID (RXAUI)
3731612
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
1092387
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):
Sominex Pain Relief Formula 500 mg / 25 mg Oral Tablet
(Atom ID: 8219132)

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
Sominex Pain Relief Formula 500 MG / 25 MG Oral Tablet
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)
1092387
RxNorm Unique Identifier for the standardized concept.
Atom ID (RXAUI)
8219132
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
1092387
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.