Tolnaftate 1 % / undecylenic acid 25 % Medicated Patch
RxNorm 2700164

Concept Hierarchy & Relationship Mapping

RxNorm Concept Unique Identifier (RxCUI) 2700164 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: tolnaftate 1 % / undecylenic acid 25 % Medicated Patch.

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

SCD
Tolnaftate 0.01 mg/MG / undecylenic acid 0.25 mg/MG Medicated Patch
Primary clinical definition
AUI:12937239
View
PSN
Tolnaftate 1 % / undecylenic acid 25 % Medicated Patch
AUI:12937241
View
SY
Tolnaftate 1 % / undecylenic acid 25 % Medicated Patch
AUI:12937240
View

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

SCD

Semantic Clinical Drug (SCD):
Tolnaftate 0.01 mg/MG / undecylenic acid 0.25 mg/MG Medicated Patch
(Atom ID: 12937239)

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
tolnaftate 0.01 MG/MG / undecylenic acid 0.25 MG/MG Medicated Patch
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)
2700164
RxNorm Unique Identifier for the standardized concept.
Atom ID (RXAUI)
12937239
Unique identifier for this specific name variation (Atom).
Term Type (TTY)
SCD
Semantic Clinical Drug (Ingredient + Strength + Dose Form)
Source Code
2700164
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 ACTIVATED
04/28/2026
Date the RxNorm atom was reactivated
RXN AI
{1251003} 10989
RXCUI of BOSS Active Ingredient preceded by RXCUI of SCDC responsible for value
RXN AI
{340019} 10637
RXCUI of BOSS Active Ingredient preceded by RXCUI of SCDC responsible for value
RXN AM
{1251003} 10989
RXCUI of BOSS Active Moiety preceded by RXCUI of SCDC responsible for value
RXN AM
{340019} 10637
RXCUI of BOSS Active Moiety preceded by RXCUI of SCDC responsible for value
RXN AVAILABLE STRENGTH
0.01 MG/MG / 0.25 MG/MG (expressed as undecylenic acid)
Available drug strengths listed in the order of ingredients from the drug
RXN BOSS FROM
{1251003} 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
{340019} 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
RXN OBSOLETED
02/24/2026
Date the RxNorm atom became obsolete
PSN

Prescribable Name (PSN):
Tolnaftate 1 % / undecylenic acid 25 % Medicated Patch
(Atom ID: 12937241)

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
tolnaftate 1 % / undecylenic acid 25 % Medicated Patch
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)
2700164
RxNorm Unique Identifier for the standardized concept.
Atom ID (RXAUI)
12937241
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
2700164
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):
Tolnaftate 1 % / undecylenic acid 25 % Medicated Patch
(Atom ID: 12937240)

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
tolnaftate 1 % / undecylenic acid 25 % Medicated Patch
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)
2700164
RxNorm Unique Identifier for the standardized concept.
Atom ID (RXAUI)
12937240
Unique identifier for this specific name variation (Atom).
Term Type (TTY)
SY
Synonym (Synonym of another TTY, given for clarity.)
Source Code
2700164
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.