Ephedrine hydrochloride 24 mg / phenobarbital 24 mg / potassium iodide 320 mg / theophylline 130 mg Oral Tablet [Quadrinal]
RxNorm 1116136

Concept Hierarchy & Relationship Mapping

RxNorm Concept Unique Identifier (RxCUI) 1116136 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: ephedrine hydrochloride 24 mg / phenobarbital 24 mg / potassium iodide 320 mg / theophylline 130 mg Oral Tablet [Quadrinal].

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

SY
Ephedrine hydrochloride 24 mg / Phenobarbital 24 mg / K+ Iodide 320 mg / Theophylline 130 mg Oral Tablet [Quadrinal]
AUI:3855592
View
TMSY
EPHEDrine hydrochloride 24 mg / PHENobarbital 24 mg / K+ Iodide 320 mg / Theophylline 130 mg Oral Tablet [Quadrinal]
AUI:3860696
View
SY
Ephedrine hydrochloride 24 mg / Phenobarbital 24 mg / Pot Iodide 320 mg / Theophylline 130 mg Oral Tablet [Quadrinal]
AUI:3855591
View
TMSY
EPHEDrine hydrochloride 24 mg / PHENobarbital 24 mg / Pot Iodide 320 mg / Theophylline 130 mg Oral Tablet [Quadrinal]
AUI:3860695
View
SBD
Ephedrine hydrochloride 24 mg / phenobarbital 24 mg / potassium iodide 320 mg / theophylline 130 mg Oral Tablet [Quadrinal]
AUI:12363003
View
TMSY
EPHEDrine hydrochloride 24 mg / PHENobarbital 24 mg / potassium iodide 320 mg / theophylline 130 mg Oral Tablet [Quadrinal]
AUI:12382184
View
SY
Quadrinal (ephedrine hydrochloride 24 mg / phenobarbital 24 mg / potassium iodide 320 mg / theophylline 130 mg) Oral Tablet
AUI:3748529
View
TMSY
Quadrinal (ePHEDrine hydrochloride 24 mg / PHENobarbital 24 mg / potassium iodide 320 mg / theophylline 130 mg) Oral Tablet
AUI:3749083
View

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

SY

Synonym (SY):
Ephedrine hydrochloride 24 mg / Phenobarbital 24 mg / K+ Iodide 320 mg / Theophylline 130 mg Oral Tablet [Quadrinal]
(Atom ID: 3855592)

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
Ephedrine hydrochloride 24 MG / Phenobarbital 24 MG / K+ Iodide 320 MG / Theophylline 130 MG Oral Tablet [Quadrinal]
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)
1116136
RxNorm Unique Identifier for the standardized concept.
Atom ID (RXAUI)
3855592
Unique identifier for this specific name variation (Atom).
Term Type (TTY)
SY
Synonym (Synonym of another TTY, given for clarity.)
Source Code
1116136
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.
TMSY

Tall Man Lettering Synonym (TMSY):
EPHEDrine hydrochloride 24 mg / PHENobarbital 24 mg / K+ Iodide 320 mg / Theophylline 130 mg Oral Tablet [Quadrinal]
(Atom ID: 3860696)

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
ePHEDrine hydrochloride 24 MG / PHENobarbital 24 MG / K+ Iodide 320 MG / Theophylline 130 MG Oral Tablet [Quadrinal]
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)
1116136
RxNorm Unique Identifier for the standardized concept.
Atom ID (RXAUI)
3860696
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
1116136
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.
SY

Synonym (SY):
Ephedrine hydrochloride 24 mg / Phenobarbital 24 mg / Pot Iodide 320 mg / Theophylline 130 mg Oral Tablet [Quadrinal]
(Atom ID: 3855591)

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
Ephedrine hydrochloride 24 MG / Phenobarbital 24 MG / Pot Iodide 320 MG / Theophylline 130 MG Oral Tablet [Quadrinal]
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)
1116136
RxNorm Unique Identifier for the standardized concept.
Atom ID (RXAUI)
3855591
Unique identifier for this specific name variation (Atom).
Term Type (TTY)
SY
Synonym (Synonym of another TTY, given for clarity.)
Source Code
1116136
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.
TMSY

Tall Man Lettering Synonym (TMSY):
EPHEDrine hydrochloride 24 mg / PHENobarbital 24 mg / Pot Iodide 320 mg / Theophylline 130 mg Oral Tablet [Quadrinal]
(Atom ID: 3860695)

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
ePHEDrine hydrochloride 24 MG / PHENobarbital 24 MG / Pot Iodide 320 MG / Theophylline 130 MG Oral Tablet [Quadrinal]
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)
1116136
RxNorm Unique Identifier for the standardized concept.
Atom ID (RXAUI)
3860695
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
1116136
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.
SBD

Semantic Branded Drug (SBD):
Ephedrine hydrochloride 24 mg / phenobarbital 24 mg / potassium iodide 320 mg / theophylline 130 mg Oral Tablet [Quadrinal]
(Atom ID: 12363003)

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
ephedrine hydrochloride 24 MG / phenobarbital 24 MG / potassium iodide 320 MG / theophylline 130 MG Oral Tablet [Quadrinal]
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)
1116136
RxNorm Unique Identifier for the standardized concept.
Atom ID (RXAUI)
12363003
Unique identifier for this specific name variation (Atom).
Term Type (TTY)
SBD
Semantic Branded Drug (Ingredient + Strength + Dose Form + Brand Name)
Source Code
1116136
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
{317513} 10438
RXCUI of BOSS Active Ingredient preceded by RXCUI of SCDC responsible for value
RXN AM
{317513} 10438
RXCUI of BOSS Active Moiety preceded by RXCUI of SCDC responsible for value
RXN BOSS FROM
{317513} 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 OBSOLETED
04/30/2020
Date the RxNorm atom became obsolete
RXTERM FORM
Tab
The RxTerm dose form name for this drug
TMSY

Tall Man Lettering Synonym (TMSY):
EPHEDrine hydrochloride 24 mg / PHENobarbital 24 mg / potassium iodide 320 mg / theophylline 130 mg Oral Tablet [Quadrinal]
(Atom ID: 12382184)

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
ePHEDrine hydrochloride 24 MG / PHENobarbital 24 MG / potassium iodide 320 MG / theophylline 130 MG Oral Tablet [Quadrinal]
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)
1116136
RxNorm Unique Identifier for the standardized concept.
Atom ID (RXAUI)
12382184
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
1116136
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.
SY

Synonym (SY):
Quadrinal (ephedrine hydrochloride 24 mg / phenobarbital 24 mg / potassium iodide 320 mg / theophylline 130 mg) Oral Tablet
(Atom ID: 3748529)

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
Quadrinal (ephedrine hydrochloride 24 MG / phenobarbital 24 MG / potassium iodide 320 MG / theophylline 130 MG) Oral Tablet
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)
1116136
RxNorm Unique Identifier for the standardized concept.
Atom ID (RXAUI)
3748529
Unique identifier for this specific name variation (Atom).
Term Type (TTY)
SY
Synonym (Synonym of another TTY, given for clarity.)
Source Code
1116136
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.
TMSY

Tall Man Lettering Synonym (TMSY):
Quadrinal (ePHEDrine hydrochloride 24 mg / PHENobarbital 24 mg / potassium iodide 320 mg / theophylline 130 mg) Oral Tablet
(Atom ID: 3749083)

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
Quadrinal (ePHEDrine hydrochloride 24 MG / PHENobarbital 24 MG / potassium iodide 320 MG / theophylline 130 MG) Oral Tablet
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)
1116136
RxNorm Unique Identifier for the standardized concept.
Atom ID (RXAUI)
3749083
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
1116136
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.