Polycin 500 UNT/GM / 10,000 UNT/GM Ophthalmic Ointment
RxNorm 213621

Concept Hierarchy & Relationship Mapping

RxNorm Concept Unique Identifier (RxCUI) 213621 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: Polycin 500 UNT/GM / 10,000 UNT/GM Ophthalmic Ointment.

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

SBD
Bacitracin 0.5 UNT/MG / polymyxin B 10 UNT/MG Ophthalmic Ointment [Polycin]
AUI:12362123
View
PSN
Polycin 500 UNT/GM / 10,000 UNT/GM Ophthalmic Ointment
AUI:6389108
View
SY
Polycin-B (bacitracin 500 UNT/GM / polymyxin B 10,000 UNT/GM) Ophthalmic Ointment
AUI:3615282
View

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

SBDPrescribable

Semantic Branded Drug (SBD):
Bacitracin 0.5 UNT/MG / polymyxin B 10 UNT/MG Ophthalmic Ointment [Polycin]
(Atom ID: 12362123)

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
bacitracin 0.5 UNT/MG / polymyxin B 10 UNT/MG Ophthalmic Ointment [Polycin]
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)
213621
RxNorm Unique Identifier for the standardized concept.
Atom ID (RXAUI)
12362123
Unique identifier for this specific name variation (Atom).
Term Type (TTY)
SBD
Semantic Branded Drug (Ingredient + Strength + Dose Form + Brand Name)
Source Code
213621
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 AI
{315454} 1291
RXCUI of BOSS Active Ingredient preceded by RXCUI of SCDC responsible for value
RXN AI
{328475} 388
RXCUI of BOSS Active Ingredient preceded by RXCUI of SCDC responsible for value
RXN AM
{315454} 1291
RXCUI of BOSS Active Moiety preceded by RXCUI of SCDC responsible for value
RXN AM
{328475} 8536
RXCUI of BOSS Active Moiety preceded by RXCUI of SCDC responsible for value
RXN AVAILABLE STRENGTH
0.5 UNT/MG / 10 UNT/MG
Available drug strengths listed in the order of ingredients from the drug
RXN BOSS FROM
{315454} 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
{328475} AM
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
RXTERM FORM
Ointment
The RxTerm dose form name for this drug
PSNPrescribable

Prescribable Name (PSN):
Polycin 500 UNT/GM / 10,000 UNT/GM Ophthalmic Ointment
(Atom ID: 6389108)

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
Polycin 500 UNT/GM / 10,000 UNT/GM Ophthalmic Ointment
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)
213621
RxNorm Unique Identifier for the standardized concept.
Atom ID (RXAUI)
6389108
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
213621
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.
SYPrescribable

Synonym (SY):
Polycin-B (bacitracin 500 UNT/GM / polymyxin B 10,000 UNT/GM) Ophthalmic Ointment
(Atom ID: 3615282)

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
Polycin-B (bacitracin 500 UNT/GM / polymyxin B 10,000 UNT/GM) Ophthalmic Ointment
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)
213621
RxNorm Unique Identifier for the standardized concept.
Atom ID (RXAUI)
3615282
Unique identifier for this specific name variation (Atom).
Term Type (TTY)
SY
Synonym (Synonym of another TTY, given for clarity.)
Source Code
213621
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.