Alka-Seltzer Extra Strength 500 mg / 1000 mg / 1985 mg Effervescent Oral Tablet
RxNorm 1536835

Concept Hierarchy & Relationship Mapping

RxNorm Concept Unique Identifier (RxCUI) 1536835 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: Alka-Seltzer Extra Strength 500 mg / 1000 mg / 1985 mg Effervescent Oral Tablet.

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

SY
Alka-Seltzer Extra Strength (aspirin 500 mg / citric acid 1000 mg / sodium bicarbonate 1985 mg) Effervescent Oral Tablet
AUI:6336847
View
PSN
Alka-Seltzer Extra Strength 500 mg / 1000 mg / 1985 mg Effervescent Oral Tablet
AUI:6811851
View
SY
ASA 500 mg / Citric Acid 1000 mg / NaHCO3 1985 mg Effervescent Oral Tablet [Alka-Seltzer]
AUI:6338638
View
SBD
Aspirin 500 mg / citric acid 1000 mg / sodium bicarbonate 1985 mg Effervescent Oral Tablet [Alka-Seltzer]
AUI:12369159
View

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

SYPrescribable

Synonym (SY):
Alka-Seltzer Extra Strength (aspirin 500 mg / citric acid 1000 mg / sodium bicarbonate 1985 mg) Effervescent Oral Tablet
(Atom ID: 6336847)

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
Alka-Seltzer Extra Strength (aspirin 500 MG / citric acid 1000 MG / sodium bicarbonate 1985 MG) Effervescent Oral Tablet
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)
1536835
RxNorm Unique Identifier for the standardized concept.
Atom ID (RXAUI)
6336847
Unique identifier for this specific name variation (Atom).
Term Type (TTY)
SY
Synonym (Synonym of another TTY, given for clarity.)
Source Code
1536835
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):
Alka-Seltzer Extra Strength 500 mg / 1000 mg / 1985 mg Effervescent Oral Tablet
(Atom ID: 6811851)

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
Alka-Seltzer Extra Strength 500 MG / 1000 MG / 1985 MG Effervescent Oral Tablet
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)
1536835
RxNorm Unique Identifier for the standardized concept.
Atom ID (RXAUI)
6811851
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
1536835
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):
ASA 500 mg / Citric Acid 1000 mg / NaHCO3 1985 mg Effervescent Oral Tablet [Alka-Seltzer]
(Atom ID: 6338638)

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
ASA 500 MG / Citric Acid 1000 MG / NaHCO3 1985 MG Effervescent Oral Tablet [Alka-Seltzer]
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)
1536835
RxNorm Unique Identifier for the standardized concept.
Atom ID (RXAUI)
6338638
Unique identifier for this specific name variation (Atom).
Term Type (TTY)
SY
Synonym (Synonym of another TTY, given for clarity.)
Source Code
1536835
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.
SBDPrescribable

Semantic Branded Drug (SBD):
Aspirin 500 mg / citric acid 1000 mg / sodium bicarbonate 1985 mg Effervescent Oral Tablet [Alka-Seltzer]
(Atom ID: 12369159)

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
aspirin 500 MG / citric acid 1000 MG / sodium bicarbonate 1985 MG Effervescent Oral Tablet [Alka-Seltzer]
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)
1536835
RxNorm Unique Identifier for the standardized concept.
Atom ID (RXAUI)
12369159
Unique identifier for this specific name variation (Atom).
Term Type (TTY)
SBD
Semantic Branded Drug (Ingredient + Strength + Dose Form + Brand Name)
Source Code
1536835
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
{1536464} 21183
RXCUI of BOSS Active Ingredient preceded by RXCUI of SCDC responsible for value
RXN AI
{1536832} 36676
RXCUI of BOSS Active Ingredient preceded by RXCUI of SCDC responsible for value
RXN AI
{315424} 1191
RXCUI of BOSS Active Ingredient preceded by RXCUI of SCDC responsible for value
RXN AM
{1536464} 21183
RXCUI of BOSS Active Moiety preceded by RXCUI of SCDC responsible for value
RXN AM
{1536832} 1364429
RXCUI of BOSS Active Moiety preceded by RXCUI of SCDC responsible for value
RXN AM
{315424} 1191
RXCUI of BOSS Active Moiety preceded by RXCUI of SCDC responsible for value
RXN AVAILABLE STRENGTH
500 MG / 1000 MG / 1985 MG
Available drug strengths listed in the order of ingredients from the drug
RXN BOSS FROM
{1536464} 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
{1536832} 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
{315424} 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 HUMAN DRUG
US
Drug available for use in Humans