Acetaminophen 500 mg / codeine phosphate 20 mg / guaifenesin 400 mg / pseudoephedrine hydrochloride 60 mg Oral Tablet [Maxiflu CD]
RxNorm 1359148

Concept Hierarchy & Relationship Mapping

RxNorm Concept Unique Identifier (RxCUI) 1359148 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: acetaminophen 500 mg / codeine phosphate 20 mg / guaifenesin 400 mg / pseudoephedrine hydrochloride 60 mg Oral Tablet [Maxiflu CD].

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

SBD
Acetaminophen 500 mg / codeine phosphate 20 mg / guaifenesin 400 mg / pseudoephedrine hydrochloride 60 mg Oral Tablet [Maxiflu CD]
AUI:12367029
View
TMSY
Acetaminophen 500 mg / codeine phosphate 20 mg / guaiFENesin 400 mg / pseudoephedrine hydrochloride 60 mg Oral Tablet [Maxiflu CD]
AUI:12377974
View
SY
APAP 500 mg / codeine phosphate 20 mg / guaifenesin 400 mg / pseudoephedrine hydrochloride 60 mg Oral Tablet [Maxiflu CD]
AUI:5080915
View
TMSY
APAP 500 mg / codeine phosphate 20 mg / guaiFENesin 400 mg / pseudoephedrine hydrochloride 60 mg Oral Tablet [Maxiflu CD]
AUI:5082255
View
SY
Maxiflu CDX (APAP 500 mg / codeine phosphate 20 mg / guaifenesin 400 mg / pseudoephedrine hydrochloride 60 mg) Oral Tablet
AUI:5033196
View
TMSY
Maxiflu CDX (APAP 500 mg / codeine phosphate 20 mg / guaiFENesin 400 mg / pseudoephedrine hydrochloride 60 mg) Oral Tablet
AUI:5033378
View

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

SBD

Semantic Branded Drug (SBD):
Acetaminophen 500 mg / codeine phosphate 20 mg / guaifenesin 400 mg / pseudoephedrine hydrochloride 60 mg Oral Tablet [Maxiflu CD]
(Atom ID: 12367029)

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
acetaminophen 500 MG / codeine phosphate 20 MG / guaifenesin 400 MG / pseudoephedrine hydrochloride 60 MG Oral Tablet [Maxiflu CD]
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)
1359148
RxNorm Unique Identifier for the standardized concept.
Atom ID (RXAUI)
12367029
Unique identifier for this specific name variation (Atom).
Term Type (TTY)
SBD
Semantic Branded Drug (Ingredient + Strength + Dose Form + Brand Name)
Source Code
1359148
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
{315266} 161
RXCUI of BOSS Active Ingredient preceded by RXCUI of SCDC responsible for value
RXN AI
{316015} 5032
RXCUI of BOSS Active Ingredient preceded by RXCUI of SCDC responsible for value
RXN AI
{994011} 2672
RXCUI of BOSS Active Ingredient preceded by RXCUI of SCDC responsible for value
RXN AI
{996721} 91168
RXCUI of BOSS Active Ingredient preceded by RXCUI of SCDC responsible for value
RXN AM
{315266} 161
RXCUI of BOSS Active Moiety preceded by RXCUI of SCDC responsible for value
RXN AM
{316015} 5032
RXCUI of BOSS Active Moiety preceded by RXCUI of SCDC responsible for value
RXN AM
{994011} 2670
RXCUI of BOSS Active Moiety preceded by RXCUI of SCDC responsible for value
RXN AM
{996721} 8896
RXCUI of BOSS Active Moiety preceded by RXCUI of SCDC responsible for value
RXN BOSS FROM
{315266} 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
{316015} 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
{994011} 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
{996721} 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):
Acetaminophen 500 mg / codeine phosphate 20 mg / guaiFENesin 400 mg / pseudoephedrine hydrochloride 60 mg Oral Tablet [Maxiflu CD]
(Atom ID: 12377974)

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
acetaminophen 500 MG / codeine phosphate 20 MG / guaiFENesin 400 MG / pseudoephedrine hydrochloride 60 MG Oral Tablet [Maxiflu CD]
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)
1359148
RxNorm Unique Identifier for the standardized concept.
Atom ID (RXAUI)
12377974
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
1359148
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):
APAP 500 mg / codeine phosphate 20 mg / guaifenesin 400 mg / pseudoephedrine hydrochloride 60 mg Oral Tablet [Maxiflu CD]
(Atom ID: 5080915)

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
APAP 500 MG / codeine phosphate 20 MG / guaifenesin 400 MG / pseudoephedrine hydrochloride 60 MG Oral Tablet [Maxiflu CD]
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)
1359148
RxNorm Unique Identifier for the standardized concept.
Atom ID (RXAUI)
5080915
Unique identifier for this specific name variation (Atom).
Term Type (TTY)
SY
Synonym (Synonym of another TTY, given for clarity.)
Source Code
1359148
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):
APAP 500 mg / codeine phosphate 20 mg / guaiFENesin 400 mg / pseudoephedrine hydrochloride 60 mg Oral Tablet [Maxiflu CD]
(Atom ID: 5082255)

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
APAP 500 MG / codeine phosphate 20 MG / guaiFENesin 400 MG / pseudoephedrine hydrochloride 60 MG Oral Tablet [Maxiflu CD]
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)
1359148
RxNorm Unique Identifier for the standardized concept.
Atom ID (RXAUI)
5082255
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
1359148
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):
Maxiflu CDX (APAP 500 mg / codeine phosphate 20 mg / guaifenesin 400 mg / pseudoephedrine hydrochloride 60 mg) Oral Tablet
(Atom ID: 5033196)

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
Maxiflu CDX (APAP 500 MG / codeine phosphate 20 MG / guaifenesin 400 MG / pseudoephedrine hydrochloride 60 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)
1359148
RxNorm Unique Identifier for the standardized concept.
Atom ID (RXAUI)
5033196
Unique identifier for this specific name variation (Atom).
Term Type (TTY)
SY
Synonym (Synonym of another TTY, given for clarity.)
Source Code
1359148
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):
Maxiflu CDX (APAP 500 mg / codeine phosphate 20 mg / guaiFENesin 400 mg / pseudoephedrine hydrochloride 60 mg) Oral Tablet
(Atom ID: 5033378)

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
Maxiflu CDX (APAP 500 MG / codeine phosphate 20 MG / guaiFENesin 400 MG / pseudoephedrine hydrochloride 60 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)
1359148
RxNorm Unique Identifier for the standardized concept.
Atom ID (RXAUI)
5033378
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
1359148
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.