Entacapone 200 mg [Comtan]
RxNorm 574540

Concept Hierarchy & Relationship Mapping

RxNorm Concept Unique Identifier (RxCUI) 574540 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: entacapone 200 mg [Comtan].

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

SBDC
Entacapone 200 mg [Comtan]
AUI:2290501
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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.

SBDCPrescribable

Semantic Branded Drug Component (SBDC):
Entacapone 200 mg [Comtan]
(Atom ID: 2290501)

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
entacapone 200 MG [Comtan]
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)
574540
RxNorm Unique Identifier for the standardized concept.
Atom ID (RXAUI)
2290501
Unique identifier for this specific name variation (Atom).
Term Type (TTY)
SBDC
Semantic Branded Drug Component (Ingredient + Strength + Brand Name)
Source Code
574540
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.

Patient Education

Entacapone


Entacapone is an inhibitor of catechol-O-methyltransferase (COMT). It is used in combination with levodopa and carbidopa (Sinemet) to treat the end-of-dose 'wearing-off' symptoms of Parkinson's disease. Entacapone helps the levodopa and carbidopa work better by allowing more of it to reach the brain, where it has its effects. This medication is sometimes prescribed for other uses; ask your doctor or pharmacist for more information.
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