Mercaptopurine 50 mg [Purinethol]
RxNorm 567599

Concept Hierarchy & Relationship Mapping

RxNorm Concept Unique Identifier (RxCUI) 567599 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: mercaptopurine 50 mg [Purinethol].

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

SBDC
Mercaptopurine 50 mg [Purinethol]
AUI:3501201
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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.

SBDC

Semantic Branded Drug Component (SBDC):
Mercaptopurine 50 mg [Purinethol]
(Atom ID: 3501201)

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
mercaptopurine 50 MG [Purinethol]
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)
567599
RxNorm Unique Identifier for the standardized concept.
Atom ID (RXAUI)
3501201
Unique identifier for this specific name variation (Atom).
Term Type (TTY)
SBDC
Semantic Branded Drug Component (Ingredient + Strength + Brand Name)
Source Code
567599
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
01/30/2024
Date the RxNorm atom was reactivated
RXN ACTIVATED
02/24/2021
Date the RxNorm atom was reactivated
RXN OBSOLETED
04/26/2018
Date the RxNorm atom became obsolete
RXN OBSOLETED
07/30/2024
Date the RxNorm atom became obsolete
RXN OBSOLETED
07/31/2023
Date the RxNorm atom became obsolete

Patient Education

Mercaptopurine


Mercaptopurine is used alone or with other chemotherapy drugs to treat acute lymphocytic leukemia (ALL; also called acute lymphoblastic leukemia and acute lymphatic leukemia; a type of cancer that begins in the white blood cells). Mercaptopurine is in a class of medications called purine antagonists. It works by stopping the growth of cancer cells.
[Learn More]


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