Fast Heartburn Relief OTC 545 mg / 905 mg / 2110 mg in 118 mL Oral Suspension
RxNorm 1538294

Concept Hierarchy & Relationship Mapping

RxNorm Concept Unique Identifier (RxCUI) 1538294 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: Fast Heartburn Relief OTC 545 mg / 905 mg / 2110 mg in 118 mL Oral Suspension.

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

SY
Calcium Carbonate 4.62 mg/ML / K+ bicarbonate 7.67 mg/ML / NaHCO3 17.9 mg/ML Oral Suspension [Fast Heartburn Relief OTC]
AUI:6340919
View
SY
Calcium Carbonate 4.62 mg/ML / Pot bicarbonate 7.67 mg/ML / NaHCO3 17.9 mg/ML Oral Suspension [Fast Heartburn Relief OTC]
AUI:6340920
View
SBD
Calcium carbonate 4.62 mg/ML / potassium bicarbonate 7.67 mg/ML / sodium bicarbonate 17.9 mg/ML Oral Suspension [Fast Heartburn Relief OTC]
AUI:12370236
View
SY
Fast Heartburn Relief OTC (calcium carbonate 545 mg / potassium bicarbonate 905 mg / sodium bicarbonate 2110 mg per 118 mL) Oral Suspension
AUI:6340672
View
PSN
Fast Heartburn Relief OTC 545 mg / 905 mg / 2110 mg in 118 mL Oral Suspension
AUI:8256334
View
SY
Fast Heartburn Relief OTC 545 mg / 905 mg / 2110 mg per 118 mL Oral Suspension
AUI:8256340
View

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

SY

Synonym (SY):
Calcium Carbonate 4.62 mg/ML / K+ bicarbonate 7.67 mg/ML / NaHCO3 17.9 mg/ML Oral Suspension [Fast Heartburn Relief OTC]
(Atom ID: 6340919)

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
Calcium Carbonate 4.62 MG/ML / K+ bicarbonate 7.67 MG/ML / NaHCO3 17.9 MG/ML Oral Suspension [Fast Heartburn Relief OTC]
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)
1538294
RxNorm Unique Identifier for the standardized concept.
Atom ID (RXAUI)
6340919
Unique identifier for this specific name variation (Atom).
Term Type (TTY)
SY
Synonym (Synonym of another TTY, given for clarity.)
Source Code
1538294
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):
Calcium Carbonate 4.62 mg/ML / Pot bicarbonate 7.67 mg/ML / NaHCO3 17.9 mg/ML Oral Suspension [Fast Heartburn Relief OTC]
(Atom ID: 6340920)

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
Calcium Carbonate 4.62 MG/ML / Pot bicarbonate 7.67 MG/ML / NaHCO3 17.9 MG/ML Oral Suspension [Fast Heartburn Relief OTC]
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)
1538294
RxNorm Unique Identifier for the standardized concept.
Atom ID (RXAUI)
6340920
Unique identifier for this specific name variation (Atom).
Term Type (TTY)
SY
Synonym (Synonym of another TTY, given for clarity.)
Source Code
1538294
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.
SBD

Semantic Branded Drug (SBD):
Calcium carbonate 4.62 mg/ML / potassium bicarbonate 7.67 mg/ML / sodium bicarbonate 17.9 mg/ML Oral Suspension [Fast Heartburn Relief OTC]
(Atom ID: 12370236)

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
calcium carbonate 4.62 MG/ML / potassium bicarbonate 7.67 MG/ML / sodium bicarbonate 17.9 MG/ML Oral Suspension [Fast Heartburn Relief OTC]
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)
1538294
RxNorm Unique Identifier for the standardized concept.
Atom ID (RXAUI)
12370236
Unique identifier for this specific name variation (Atom).
Term Type (TTY)
SBD
Semantic Branded Drug (Ingredient + Strength + Dose Form + Brand Name)
Source Code
1538294
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
{1538281} 1897
RXCUI of BOSS Active Ingredient preceded by RXCUI of SCDC responsible for value
RXN AI
{1538282} 34296
RXCUI of BOSS Active Ingredient preceded by RXCUI of SCDC responsible for value
RXN AI
{1538283} 36676
RXCUI of BOSS Active Ingredient preceded by RXCUI of SCDC responsible for value
RXN AM
{1538281} 1316581
RXCUI of BOSS Active Moiety preceded by RXCUI of SCDC responsible for value
RXN AM
{1538282} 8588
RXCUI of BOSS Active Moiety preceded by RXCUI of SCDC responsible for value
RXN AM
{1538283} 1364429
RXCUI of BOSS Active Moiety preceded by RXCUI of SCDC responsible for value
RXN BOSS FROM
{1538281} 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 BOSS FROM
{1538282} 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 BOSS FROM
{1538283} 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
RXTERM FORM
Susp
The RxTerm dose form name for this drug
SY

Synonym (SY):
Fast Heartburn Relief OTC (calcium carbonate 545 mg / potassium bicarbonate 905 mg / sodium bicarbonate 2110 mg per 118 mL) Oral Suspension
(Atom ID: 6340672)

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
Fast Heartburn Relief OTC (calcium carbonate 545 MG / potassium bicarbonate 905 MG / sodium bicarbonate 2110 MG per 118 ML) Oral Suspension
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)
1538294
RxNorm Unique Identifier for the standardized concept.
Atom ID (RXAUI)
6340672
Unique identifier for this specific name variation (Atom).
Term Type (TTY)
SY
Synonym (Synonym of another TTY, given for clarity.)
Source Code
1538294
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):
Fast Heartburn Relief OTC 545 mg / 905 mg / 2110 mg in 118 mL Oral Suspension
(Atom ID: 8256334)

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
Fast Heartburn Relief OTC 545 MG / 905 MG / 2110 MG in 118 mL Oral Suspension
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)
1538294
RxNorm Unique Identifier for the standardized concept.
Atom ID (RXAUI)
8256334
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
1538294
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):
Fast Heartburn Relief OTC 545 mg / 905 mg / 2110 mg per 118 mL Oral Suspension
(Atom ID: 8256340)

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
Fast Heartburn Relief OTC 545 MG / 905 MG / 2110 MG per 118 ML Oral Suspension
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)
1538294
RxNorm Unique Identifier for the standardized concept.
Atom ID (RXAUI)
8256340
Unique identifier for this specific name variation (Atom).
Term Type (TTY)
SY
Synonym (Synonym of another TTY, given for clarity.)
Source Code
1538294
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

Calcium



[Learn More]


* Please review the disclaimer below.