Slow Fe Slow Release Iron + Folic Acid 50 mg / 0.4 mg Extended Release Oral Tablet
RxNorm 212973

Concept Hierarchy & Relationship Mapping

RxNorm Concept Unique Identifier (RxCUI) 212973 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: Slow Fe Slow Release Iron + Folic Acid 50 mg / 0.4 mg Extended Release Oral Tablet.

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

SBD
Ferrous sulfate 160 mg / folic acid 0.4 mg Extended Release Oral Tablet [Slow Fe with Folic Acid]
AUI:12369312
View
SY
FESO4 160 mg / folate 0.4 mg Extended Release Oral Tablet [Slow Fe with Folic Acid]
AUI:6356755
View
PSN
Slow Fe Slow Release Iron + Folic Acid 50 mg / 0.4 mg Extended Release Oral Tablet
AUI:6369666
View
SY
Slow Fe with Folic Acid (ferrous sulfate 160 mg (iron 50 mg) / folic acid 0.4 mg) Extended Release Oral Tablet
AUI:6357082
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):
Ferrous sulfate 160 mg / folic acid 0.4 mg Extended Release Oral Tablet [Slow Fe with Folic Acid]
(Atom ID: 12369312)

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
ferrous sulfate 160 MG / folic acid 0.4 MG Extended Release Oral Tablet [Slow Fe with Folic Acid]
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)
212973
RxNorm Unique Identifier for the standardized concept.
Atom ID (RXAUI)
12369312
Unique identifier for this specific name variation (Atom).
Term Type (TTY)
SBD
Semantic Branded Drug (Ingredient + Strength + Dose Form + Brand Name)
Source Code
212973
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
{315962} 4511
RXCUI of BOSS Active Ingredient preceded by RXCUI of SCDC responsible for value
RXN AI
{334770} 24947
RXCUI of BOSS Active Ingredient preceded by RXCUI of SCDC responsible for value
RXN AM
{315962} 4511
RXCUI of BOSS Active Moiety preceded by RXCUI of SCDC responsible for value
RXN AM
{334770} 1541238
RXCUI of BOSS Active Moiety preceded by RXCUI of SCDC responsible for value
RXN BOSS FROM
{315962} 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
{334770} 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 OBSOLETED
04/30/2020
Date the RxNorm atom became obsolete
SY

Synonym (SY):
FESO4 160 mg / folate 0.4 mg Extended Release Oral Tablet [Slow Fe with Folic Acid]
(Atom ID: 6356755)

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
FESO4 160 MG / folate 0.4 MG Extended Release Oral Tablet [Slow Fe with Folic Acid]
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)
212973
RxNorm Unique Identifier for the standardized concept.
Atom ID (RXAUI)
6356755
Unique identifier for this specific name variation (Atom).
Term Type (TTY)
SY
Synonym (Synonym of another TTY, given for clarity.)
Source Code
212973
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):
Slow Fe Slow Release Iron + Folic Acid 50 mg / 0.4 mg Extended Release Oral Tablet
(Atom ID: 6369666)

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
Slow Fe Slow Release Iron + Folic Acid 50 MG / 0.4 MG Extended Release 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)
212973
RxNorm Unique Identifier for the standardized concept.
Atom ID (RXAUI)
6369666
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
212973
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):
Slow Fe with Folic Acid (ferrous sulfate 160 mg (iron 50 mg) / folic acid 0.4 mg) Extended Release Oral Tablet
(Atom ID: 6357082)

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
Slow Fe with Folic Acid (ferrous sulfate 160 MG (iron 50 MG) / folic acid 0.4 MG) Extended Release 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)
212973
RxNorm Unique Identifier for the standardized concept.
Atom ID (RXAUI)
6357082
Unique identifier for this specific name variation (Atom).
Term Type (TTY)
SY
Synonym (Synonym of another TTY, given for clarity.)
Source Code
212973
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.