ISOtretinoin Oral Capsule [Accutane]
RxNorm 366231

Concept Hierarchy & Relationship Mapping

RxNorm Concept Unique Identifier (RxCUI) 366231 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: ISOtretinoin Oral Capsule [Accutane].

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

TMSY
ISOtretinoin Oral Capsule [Accutane]
AUI:3723765
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SBDF
Isotretinoin Oral Capsule [Accutane]
AUI:12318121
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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.

TMSYPrescribable

Tall Man Lettering Synonym (TMSY):
ISOtretinoin Oral Capsule [Accutane]
(Atom ID: 3723765)

Clinical Status & Identity

Prescribable Status
YES (Active)
Part of the RxNorm Current Prescribable Content subset including all drugs available for prescription in the USA.
Concept Description
ISOtretinoin Oral Capsule [Accutane]
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)
366231
RxNorm Unique Identifier for the standardized concept.
Atom ID (RXAUI)
3723765
Unique identifier for this specific name variation (Atom).
Term Type (TTY)
TMSY
Tall Man Lettering Synonym (Tall Man Lettering synonym of another TTY, given to distinguish between commonly confused drugs.)
Source Code
366231
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.
SBDFPrescribable

Semantic Branded Drug Form (SBDF):
Isotretinoin Oral Capsule [Accutane]
(Atom ID: 12318121)

Clinical Status & Identity

Prescribable Status
YES (Active)
Part of the RxNorm Current Prescribable Content subset including all drugs available for prescription in the USA.
Concept Description
isotretinoin Oral Capsule [Accutane]
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)
366231
RxNorm Unique Identifier for the standardized concept.
Atom ID (RXAUI)
12318121
Unique identifier for this specific name variation (Atom).
Term Type (TTY)
SBDF
Semantic Branded Drug Form (Ingredient + Dose Form + Brand Name)
Source Code
366231
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
01/27/2021
Date the RxNorm atom was reactivated
RXN OBSOLETED
04/30/2020
Date the RxNorm atom became obsolete

Patient Education

Isotretinoin


Isotretinoin is used to treat severe recalcitrant nodular acne (a certain type of severe acne) that has not been helped by other treatments, such as antibiotics. Isotretinoin is in a class of medications called retinoids. It works by slowing the production of certain natural substances that can cause acne.
[Learn More]


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