Tobramycin 0.3 % / dexAMETHasone 0.1 % Ophthalmic Ointment
RxNorm 309682

Concept Hierarchy & Relationship Mapping

RxNorm Concept Unique Identifier (RxCUI) 309682 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: tobramycin 0.3 % / dexAMETHasone 0.1 % Ophthalmic Ointment.

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

SCD
Dexamethasone 0.001 mg/MG / tobramycin 0.003 mg/MG Ophthalmic Ointment
Primary clinical definition
AUI:12337922
View
TMSY
DexAMETHasone 0.001 mg/MG / tobramycin 0.003 mg/MG Ophthalmic Ointment
AUI:12815068
View
SY
Dexamethasone 0.1 % / tobramycin 0.3 % Ophthalmic Ointment
AUI:3293144
View
TMSY
DexAMETHasone 0.1 % / tobramycin 0.3 % Ophthalmic Ointment
AUI:12814064
View
PSN
Tobramycin 0.3 % / dexAMETHasone 0.1 % Ophthalmic Ointment
AUI:6387233
View

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

SCDPrescribable

Semantic Clinical Drug (SCD):
Dexamethasone 0.001 mg/MG / tobramycin 0.003 mg/MG Ophthalmic Ointment
(Atom ID: 12337922)

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
dexamethasone 0.001 MG/MG / tobramycin 0.003 MG/MG 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)
309682
RxNorm Unique Identifier for the standardized concept.
Atom ID (RXAUI)
12337922
Unique identifier for this specific name variation (Atom).
Term Type (TTY)
SCD
Semantic Clinical Drug (Ingredient + Strength + Dose Form)
Source Code
309682
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
{328612} 10627
RXCUI of BOSS Active Ingredient preceded by RXCUI of SCDC responsible for value
RXN AI
{339981} 3264
RXCUI of BOSS Active Ingredient preceded by RXCUI of SCDC responsible for value
RXN AM
{328612} 10627
RXCUI of BOSS Active Moiety preceded by RXCUI of SCDC responsible for value
RXN AM
{339981} 3264
RXCUI of BOSS Active Moiety preceded by RXCUI of SCDC responsible for value
RXN AVAILABLE STRENGTH
0.001 MG/MG / 0.003 MG/MG
Available drug strengths listed in the order of ingredients from the drug
RXN BOSS FROM
{328612} 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
{339981} 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 HUMAN DRUG
US
Drug available for use in Humans
RXTERM FORM
Ointment
The RxTerm dose form name for this drug
TMSYPrescribable

Tall Man Lettering Synonym (TMSY):
DexAMETHasone 0.001 mg/MG / tobramycin 0.003 mg/MG Ophthalmic Ointment
(Atom ID: 12815068)

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
dexAMETHasone 0.001 MG/MG / tobramycin 0.003 MG/MG 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)
309682
RxNorm Unique Identifier for the standardized concept.
Atom ID (RXAUI)
12815068
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
309682
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):
Dexamethasone 0.1 % / tobramycin 0.3 % Ophthalmic Ointment
(Atom ID: 3293144)

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
dexamethasone 0.1 % / tobramycin 0.3 % 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)
309682
RxNorm Unique Identifier for the standardized concept.
Atom ID (RXAUI)
3293144
Unique identifier for this specific name variation (Atom).
Term Type (TTY)
SY
Synonym (Synonym of another TTY, given for clarity.)
Source Code
309682
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.
TMSYPrescribable

Tall Man Lettering Synonym (TMSY):
DexAMETHasone 0.1 % / tobramycin 0.3 % Ophthalmic Ointment
(Atom ID: 12814064)

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
dexAMETHasone 0.1 % / tobramycin 0.3 % 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)
309682
RxNorm Unique Identifier for the standardized concept.
Atom ID (RXAUI)
12814064
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
309682
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.
PSNPrescribable

Prescribable Name (PSN):
Tobramycin 0.3 % / dexAMETHasone 0.1 % Ophthalmic Ointment
(Atom ID: 6387233)

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
tobramycin 0.3 % / dexAMETHasone 0.1 % 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)
309682
RxNorm Unique Identifier for the standardized concept.
Atom ID (RXAUI)
6387233
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
309682
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

Dexamethasone Ophthalmic


Dexamethasone reduces the irritation, redness, burning, and swelling of eye caused by chemicals, heat, radiation, infection, allergy, or foreign bodies in the eye. It is sometimes used after eye surgery.
[Learn More]


Tobramycin Ophthalmic


Ophthalmic tobramycin is used to treat eye infections. Tobramycin is in a class of medications called antibiotics. It works by killing bacteria that cause infections.
[Learn More]


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