Slippery elm bark
RxNorm 259434

Concept Hierarchy & Relationship Mapping

RxNorm Concept Unique Identifier (RxCUI) 259434 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: slippery elm bark.

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

IN
Slippery elm bark
AUI:12252904
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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.

IN

Ingredient (IN):
Slippery elm bark
(Atom ID: 12252904)

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
slippery elm bark
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)
259434
RxNorm Unique Identifier for the standardized concept.
Atom ID (RXAUI)
12252904
Unique identifier for this specific name variation (Atom).
Term Type (TTY)
IN
Ingredient (A compound or moiety that gives the drug its distinctive clinical properties. Ingredients generally use the United States Adopted Name (USAN).)
Source Code
259434
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.
UNII Crosswalk
91QY4PXU8Q - ULMUS RUBRA BARK (INGREDIENT SUBSTANCE)
RxNorm to Unique Ingredient Identifier crosswalk.

Patient Education

Slippery Elm


What is it? Slippery elm (Ulmus rubra) is a tree that is native to North America. Its inner bark feels slippery when chewed and may be effective for soothing sore throat.

Only the inner bark of slippery elm, not the whole bark, is used as medicine. The inner bark contains chemicals that can increase mucous secretion, which might be helpful for stomach and intestinal problems.

People use slippery elm for sore throat, constipation, stomach ulcers, skin disorders, and many other conditions, but there is no good scientific evidence to support these uses.


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