Fosphenytoin sodium 50 mg/ML
RxNorm 2530881

Concept Hierarchy & Relationship Mapping

RxNorm Concept Unique Identifier (RxCUI) 2530881 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: fosphenytoin sodium 50 mg/ML.

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

SCDC
Fosphenytoin sodium 50 mg/ML
AUI:12616322
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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.

SCDC

Semantic Clinical Drug Component (SCDC):
Fosphenytoin sodium 50 mg/ML
(Atom ID: 12616322)

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
fosphenytoin sodium 50 MG/ML
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)
2530881
RxNorm Unique Identifier for the standardized concept.
Atom ID (RXAUI)
12616322
Unique identifier for this specific name variation (Atom).
Term Type (TTY)
SCDC
Semantic Clinical Drug Component (Ingredient + Strength)
Source Code
2530881
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
06/30/2021
Date the RxNorm atom was reactivated
RXN BOSS STRENGTH DENOM UNIT
ML
RXN Boss Strength Denom Unit
RXN BOSS STRENGTH DENOM VALUE
1
RXN Boss Strength Denom Value
RXN BOSS STRENGTH NUM UNIT
MG
RXN Boss Strength Num Unit
RXN BOSS STRENGTH NUM VALUE
50
RXN Boss Strength Num Value
RXN IN EXPRESSED FLAG
P
Strength Expressed As Precise Flag
RXN OBSOLETED
01/30/2024
Date the RxNorm atom became obsolete
RXN OBSOLETED
03/31/2021
Date the RxNorm atom became obsolete
RXN STRENGTH
50 MG/ML
Strength plus unit of SCDC

Patient Education

Fosphenytoin Injection


Fosphenytoin injection is used to treat primary generalized tonic-clonic seizures (formerly known as a grand mal seizure; seizure that involves the entire body) and to treat and prevent seizures that may begin during or after surgery to the brain or nervous system. Fosphenytoin injection may also be used to control certain type of seizures in people who cannot take oral phenytoin. Fosphenytoin is in a class of medications called anticonvulsants. It works by decreasing abnormal electrical activity in the brain.
[Learn More]


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