Psyllium 3400 mg Oral Wafer [Metamucil]
RxNorm 212524

Concept Hierarchy & Relationship Mapping

RxNorm Concept Unique Identifier (RxCUI) 212524 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: psyllium 3400 mg Oral Wafer [Metamucil].

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

SY
Metamucil 3400 mg Oral Wafer
AUI:6357428
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SBD
Psyllium 3400 mg Oral Wafer [Metamucil]
AUI:12369452
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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):
Metamucil 3400 mg Oral Wafer
(Atom ID: 6357428)

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
Metamucil 3400 MG Oral Wafer
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)
212524
RxNorm Unique Identifier for the standardized concept.
Atom ID (RXAUI)
6357428
Unique identifier for this specific name variation (Atom).
Term Type (TTY)
SY
Synonym (Synonym of another TTY, given for clarity.)
Source Code
212524
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):
Psyllium 3400 mg Oral Wafer [Metamucil]
(Atom ID: 12369452)

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
psyllium 3400 MG Oral Wafer [Metamucil]
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)
212524
RxNorm Unique Identifier for the standardized concept.
Atom ID (RXAUI)
12369452
Unique identifier for this specific name variation (Atom).
Term Type (TTY)
SBD
Semantic Branded Drug (Ingredient + Strength + Dose Form + Brand Name)
Source Code
212524
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
{331385} 8928
RXCUI of BOSS Active Ingredient preceded by RXCUI of SCDC responsible for value
RXN AM
{331385} 8928
RXCUI of BOSS Active Moiety preceded by RXCUI of SCDC responsible for value
RXN BOSS FROM
{331385} AI
Source of BOSS as either from the active ingredient (AI) or the active moiety (AM) preceded by RXCUI of SCDC responsible for value

Patient Education

Black Psyllium


What is it? Black psyllium is a plant. People use the seed to make medicine. Be careful not to confuse black psyllium with other forms of psyllium including blond psyllium.

Black psyllium is found in some over-the-counter medicines and is effective for treating and preventing constipation. It is also used for diarrhea, obesity, diabetes, and for reducing the risk of heart disease, but there is less evidence that it is effective for these conditions.


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Blond Psyllium


What is it? Blond psyllium (Plantago ovata) is an herb. Its seed husk is used as a laxative and stool softener and to help reduce cholesterol.

Psyllium seed husks absorb water in the stomach and form a large mass. This mass stimulates the bowel in people with constipation. In people with diarrhea, it can slow down the bowel and reduce bowel movements. This mass can also reduce the amount of cholesterol that is absorbed into the body.

Blond psyllium is commonly used as a stool softener in people with constipation and hemorrhoids. It is also used for diarrhea, irritable bowel syndrome (IBS), high cholesterol, heart disease, and diabetes. It's used for many other conditions, but there is no good scientific evidence to support most of these other uses.


[Learn More]


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