Tobramycin 0.3 % / dexAMETHasone 0.1 % Ophthalmic Suspension
RxNorm 309683

Concept Hierarchy & Relationship Mapping

RxNorm Concept Unique Identifier (RxCUI) 309683 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 Suspension.

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

SCD
Dexamethasone 1 mg/ML / tobramycin 3 mg/ML Ophthalmic Suspension
Primary clinical definition
AUI:12340279
View
SY
Dexamethasone 0.1 % / tobramycin 0.3 % Ophthalmic Suspension
AUI:3034701
View
TMSY
DexAMETHasone 0.1 % / tobramycin 0.3 % Ophthalmic Suspension
AUI:12814044
View
TMSY
DexAMETHasone 1 mg/ML / tobramycin 3 mg/ML Ophthalmic Suspension
AUI:12815083
View
PT
Dexamethasone 1 mg/mL and tobramycin 3 mg/mL eye drops
AUI:10297013
View
PT
Dexamethasone phosphate (as dexamethasone sodium phosphate) 1 mg/mL and tobramycin (as tobramycin sulfate) 3 mg/mL eye drops
AUI:12755639
View
FN
Product containing precisely dexamethasone 1 mg/1 mL and tobramycin 3 mg/1 mL conventional release eye drops (clinical drug)
AUI:10311267
View
FN
Product containing precisely dexamethasone phosphate (as dexamethasone sodium phosphate) 1 mg/1 mL and tobramycin (as tobramycin sulfate) 3 mg/1 mL conventional release eye drops (clinical drug)
AUI:12757129
View
PSN
Tobramycin 0.3 % / dexAMETHasone 0.1 % Ophthalmic Suspension
AUI:6403607
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 1 mg/ML / tobramycin 3 mg/ML Ophthalmic Suspension
(Atom ID: 12340279)

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 1 MG/ML / tobramycin 3 MG/ML Ophthalmic Suspension
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)
309683
RxNorm Unique Identifier for the standardized concept.
Atom ID (RXAUI)
12340279
Unique identifier for this specific name variation (Atom).
Term Type (TTY)
SCD
Semantic Clinical Drug (Ingredient + Strength + Dose Form)
Source Code
309683
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
{317629} 3264
RXCUI of BOSS Active Ingredient preceded by RXCUI of SCDC responsible for value
RXN AI
{323975} 10627
RXCUI of BOSS Active Ingredient preceded by RXCUI of SCDC responsible for value
RXN AM
{317629} 3264
RXCUI of BOSS Active Moiety preceded by RXCUI of SCDC responsible for value
RXN AM
{323975} 10627
RXCUI of BOSS Active Moiety preceded by RXCUI of SCDC responsible for value
RXN AVAILABLE STRENGTH
1 MG/ML / 3 MG/ML
Available drug strengths listed in the order of ingredients from the drug
RXN BOSS FROM
{317629} 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
{323975} 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
Susp
The RxTerm dose form name for this drug
SYPrescribable

Synonym (SY):
Dexamethasone 0.1 % / tobramycin 0.3 % Ophthalmic Suspension
(Atom ID: 3034701)

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 Suspension
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)
309683
RxNorm Unique Identifier for the standardized concept.
Atom ID (RXAUI)
3034701
Unique identifier for this specific name variation (Atom).
Term Type (TTY)
SY
Synonym (Synonym of another TTY, given for clarity.)
Source Code
309683
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 Suspension
(Atom ID: 12814044)

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 Suspension
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)
309683
RxNorm Unique Identifier for the standardized concept.
Atom ID (RXAUI)
12814044
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
309683
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 1 mg/ML / tobramycin 3 mg/ML Ophthalmic Suspension
(Atom ID: 12815083)

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 1 MG/ML / tobramycin 3 MG/ML Ophthalmic Suspension
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)
309683
RxNorm Unique Identifier for the standardized concept.
Atom ID (RXAUI)
12815083
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
309683
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.
PTPrescribable

Designated preferred name (PT):
Dexamethasone 1 mg/mL and tobramycin 3 mg/mL eye drops
(Atom ID: 10297013)

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 1 mg/mL and tobramycin 3 mg/mL eye drops
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)
309683
RxNorm Unique Identifier for the standardized concept.
Atom ID (RXAUI)
10297013
Unique identifier for this specific name variation (Atom).
Term Type (TTY)
PT
Designated preferred name ()
Source Code
134748003
The "Most useful" identifier asserted by the original source vocabulary.

Source & Registry Data

Source Name
US Edition of SNOMED CT (SNOMEDCT_US)
The official name and abbreviation for the vocabulary source.
Source Version
2026_01_31
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
National Library Of Medicine, NLM is a Charter Member of SNOMED International on behalf of the U.S., National Library of Medicine, 8600 Rockville Pike, , Bethesda, MD, United States, 20894, 1-888-FIND-NLM (1-888-346-3656), , https://support.nlm.nih.gov/support/create-case/,
Source licensing contact information.
PTPrescribable

Designated preferred name (PT):
Dexamethasone phosphate (as dexamethasone sodium phosphate) 1 mg/mL and tobramycin (as tobramycin sulfate) 3 mg/mL eye drops
(Atom ID: 12755639)

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 phosphate (as dexamethasone sodium phosphate) 1 mg/mL and tobramycin (as tobramycin sulfate) 3 mg/mL eye drops
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)
309683
RxNorm Unique Identifier for the standardized concept.
Atom ID (RXAUI)
12755639
Unique identifier for this specific name variation (Atom).
Term Type (TTY)
PT
Designated preferred name ()
Source Code
1231528002
The "Most useful" identifier asserted by the original source vocabulary.

Source & Registry Data

Source Name
US Edition of SNOMED CT (SNOMEDCT_US)
The official name and abbreviation for the vocabulary source.
Source Version
2026_01_31
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
National Library Of Medicine, NLM is a Charter Member of SNOMED International on behalf of the U.S., National Library of Medicine, 8600 Rockville Pike, , Bethesda, MD, United States, 20894, 1-888-FIND-NLM (1-888-346-3656), , https://support.nlm.nih.gov/support/create-case/,
Source licensing contact information.
FNPrescribable

Full form of descriptor (FN):
Product containing precisely dexamethasone 1 mg/1 mL and tobramycin 3 mg/1 mL conventional release eye drops (clinical drug)
(Atom ID: 10311267)

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
Product containing precisely dexamethasone 1 milligram/1 milliliter and tobramycin 3 milligram/1 milliliter conventional release eye drops (clinical drug)
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)
309683
RxNorm Unique Identifier for the standardized concept.
Atom ID (RXAUI)
10311267
Unique identifier for this specific name variation (Atom).
Term Type (TTY)
FN
Full form of descriptor ()
Source Code
134748003
The "Most useful" identifier asserted by the original source vocabulary.

Source & Registry Data

Source Name
US Edition of SNOMED CT (SNOMEDCT_US)
The official name and abbreviation for the vocabulary source.
Source Version
2026_01_31
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
National Library Of Medicine, NLM is a Charter Member of SNOMED International on behalf of the U.S., National Library of Medicine, 8600 Rockville Pike, , Bethesda, MD, United States, 20894, 1-888-FIND-NLM (1-888-346-3656), , https://support.nlm.nih.gov/support/create-case/,
Source licensing contact information.
FNPrescribable

Full form of descriptor (FN):
Product containing precisely dexamethasone phosphate (as dexamethasone sodium phosphate) 1 mg/1 mL and tobramycin (as tobramycin sulfate) 3 mg/1 mL conventional release eye drops (clinical drug)
(Atom ID: 12757129)

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
Product containing precisely dexamethasone phosphate (as dexamethasone sodium phosphate) 1 milligram/1 milliliter and tobramycin (as tobramycin sulfate) 3 milligram/1 milliliter conventional release eye drops (clinical drug)
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)
309683
RxNorm Unique Identifier for the standardized concept.
Atom ID (RXAUI)
12757129
Unique identifier for this specific name variation (Atom).
Term Type (TTY)
FN
Full form of descriptor ()
Source Code
1231528002
The "Most useful" identifier asserted by the original source vocabulary.

Source & Registry Data

Source Name
US Edition of SNOMED CT (SNOMEDCT_US)
The official name and abbreviation for the vocabulary source.
Source Version
2026_01_31
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
National Library Of Medicine, NLM is a Charter Member of SNOMED International on behalf of the U.S., National Library of Medicine, 8600 Rockville Pike, , Bethesda, MD, United States, 20894, 1-888-FIND-NLM (1-888-346-3656), , https://support.nlm.nih.gov/support/create-case/,
Source licensing contact information.
PSNPrescribable

Prescribable Name (PSN):
Tobramycin 0.3 % / dexAMETHasone 0.1 % Ophthalmic Suspension
(Atom ID: 6403607)

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 Suspension
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)
309683
RxNorm Unique Identifier for the standardized concept.
Atom ID (RXAUI)
6403607
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
309683
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]


* Please review the disclaimer below.