Guaifenesin 45 mg/ML / hydrocodone bitartrate 0.5 mg/ML / phenylephrine hydrochloride 2 mg/ML Oral Solution [Simuc-HD]
RxNorm 859943

Concept Hierarchy & Relationship Mapping

RxNorm Concept Unique Identifier (RxCUI) 859943 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: guaifenesin 45 mg/ML / hydrocodone bitartrate 0.5 mg/ML / phenylephrine hydrochloride 2 mg/ML Oral Solution [Simuc-HD].

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

SBD
Guaifenesin 45 mg/ML / hydrocodone bitartrate 0.5 mg/ML / phenylephrine hydrochloride 2 mg/ML Oral Solution [Simuc-HD]
AUI:12362913
TMSY
GuaiFENesin 45 mg/ML / HYDROcodone bitartrate 0.5 mg/ML / phenylephrine hydrochloride 2 mg/ML Oral Solution [Simuc-HD]
AUI:12382126
SY
Simuc-HD (guaifenesin 225 mg / hydrocodone bitartrate 2.5 mg / phenylephrine HCl 10 mg) per 5 mL Elixir
AUI:11813692
TMSY
Simuc-HD (guaiFENesin 225 mg / HYDROcodone bitartrate 2.5 mg / phenylephrine HCl 10 mg) per 5 mL Elixir
AUI:11814365

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):
Guaifenesin 45 mg/ML / hydrocodone bitartrate 0.5 mg/ML / phenylephrine hydrochloride 2 mg/ML Oral Solution [Simuc-HD]
(Atom ID: 12362913)

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
guaifenesin 45 MG/ML / hydrocodone bitartrate 0.5 MG/ML / phenylephrine hydrochloride 2 MG/ML Oral Solution [Simuc-HD]
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)
859943
RxNorm Unique Identifier for the standardized concept.
Atom ID (RXAUI)
12362913
Unique identifier for this specific name variation (Atom).
Term Type (TTY)
SBD
Semantic Branded Drug (Ingredient + Strength + Dose Form + Brand Name)
Source Code
859943
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
{335407} 5032
RXCUI of BOSS Active Ingredient preceded by RXCUI of SCDC responsible for value
RXN AI
{856939} 142439
RXCUI of BOSS Active Ingredient preceded by RXCUI of SCDC responsible for value
RXN AI
{996626} 8164
RXCUI of BOSS Active Ingredient preceded by RXCUI of SCDC responsible for value
RXN AM
{335407} 5032
RXCUI of BOSS Active Moiety preceded by RXCUI of SCDC responsible for value
RXN AM
{856939} 5489
RXCUI of BOSS Active Moiety preceded by RXCUI of SCDC responsible for value
RXN AM
{996626} 8163
RXCUI of BOSS Active Moiety preceded by RXCUI of SCDC responsible for value
RXN BOSS FROM
{335407} 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
{856939} 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
{996626} 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
12/29/2021
Date the RxNorm atom became obsolete
RXTERM FORM
Sol
The RxTerm dose form name for this drug

TMSY

Tall Man Lettering Synonym (TMSY):
GuaiFENesin 45 mg/ML / HYDROcodone bitartrate 0.5 mg/ML / phenylephrine hydrochloride 2 mg/ML Oral Solution [Simuc-HD]
(Atom ID: 12382126)

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
guaiFENesin 45 MG/ML / HYDROcodone bitartrate 0.5 MG/ML / phenylephrine hydrochloride 2 MG/ML Oral Solution [Simuc-HD]
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)
859943
RxNorm Unique Identifier for the standardized concept.
Atom ID (RXAUI)
12382126
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
859943
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):
Simuc-HD (guaifenesin 225 mg / hydrocodone bitartrate 2.5 mg / phenylephrine HCl 10 mg) per 5 mL Elixir
(Atom ID: 11813692)

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
Simuc-HD (guaifenesin 225 MG / hydrocodone bitartrate 2.5 MG / phenylephrine HCl 10 MG) per 5 ML Elixir
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)
859943
RxNorm Unique Identifier for the standardized concept.
Atom ID (RXAUI)
11813692
Unique identifier for this specific name variation (Atom).
Term Type (TTY)
SY
Synonym (Synonym of another TTY, given for clarity.)
Source Code
859943
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):
Simuc-HD (guaiFENesin 225 mg / HYDROcodone bitartrate 2.5 mg / phenylephrine HCl 10 mg) per 5 mL Elixir
(Atom ID: 11814365)

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
Simuc-HD (guaiFENesin 225 MG / HYDROcodone bitartrate 2.5 MG / phenylephrine HCl 10 MG) per 5 ML Elixir
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)
859943
RxNorm Unique Identifier for the standardized concept.
Atom ID (RXAUI)
11814365
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
859943
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

Guaifenesin


Guaifenesin is used to relieve chest congestion. Guaifenesin may help control symptoms but does not treat the cause of symptoms or speed recovery. Guaifenesin is in a class of medications called expectorants. It works by thinning the mucus in the air passages to make it easier to cough up the mucus and clear the airways.
[Learn More]


Hydrocodone Combination Products


Hydrocodone is available in combination with other ingredients, and different combination products are prescribed for different uses. Some hydrocodone combination products are used to relieve moderate-to-severe pain. Other hydrocodone combination products are used to relieve cough. Hydrocodone is in a class of medications called opiate (narcotic) analgesics and in a class of medications called antitussives. Hydrocodone relieves pain by changing the way the brain and nervous system respond to pain. Hydrocodone relieves cough by decreasing activity in the part of the brain that causes coughing. You will take hydrocodone in combination with at least one other medication, but this monograph only provides information about hydrocodone. Be sure to read information about the other ingredients in the hydrocodone product you are taking. Ask your doctor or pharmacist if you have any questions.
[Learn More]


Phenylephrine


Phenylephrine is used to relieve nasal discomfort caused by colds, allergies, and hay fever. It is also used to relieve sinus congestion and pressure. Phenylephrine will relieve symptoms but will not treat the cause of the symptoms or speed recovery. Phenylephrine is in a class of medications called nasal decongestants. It works by reducing swelling of the blood vessels in the nasal passages.
[Learn More]


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