PHEXXI 1.8 % / 1 % / 0.4 % Vaginal Gel
RxNorm 2385353

Concept Hierarchy & Relationship Mapping

RxNorm Concept Unique Identifier (RxCUI) 2385353 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: PHEXXI 1.8 % / 1 % / 0.4 % Vaginal Gel.

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

SY
Citric acid 0.01 mg/MG / lactic acid 0.018 mg/MG / K+ bitartrate 0.004 mg/MG Vaginal Gel [Phexxi]
AUI:12416622
View
SY
Citric acid 0.01 mg/MG / lactic acid 0.018 mg/MG / Pot bitartrate 0.004 mg/MG Vaginal Gel [Phexxi]
AUI:12416623
View
SBD
Citric acid 0.01 mg/MG / lactic acid 0.018 mg/MG / potassium bitartrate 0.004 mg/MG Vaginal Gel [Phexxi]
AUI:12416537
View
SY
Phexxi (lactic acid 1.8 % / citric acid 1 % / potassium bitartrate 0.4 % ) Vaginal Gel
AUI:12416539
View
PSN
PHEXXI 1.8 % / 1 % / 0.4 % Vaginal Gel
AUI:12416538
View

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

SYPrescribable

Synonym (SY):
Citric acid 0.01 mg/MG / lactic acid 0.018 mg/MG / K+ bitartrate 0.004 mg/MG Vaginal Gel [Phexxi]
(Atom ID: 12416622)

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
citric acid 0.01 MG/MG / lactic acid 0.018 MG/MG / K+ bitartrate 0.004 MG/MG Vaginal Gel [Phexxi]
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)
2385353
RxNorm Unique Identifier for the standardized concept.
Atom ID (RXAUI)
12416622
Unique identifier for this specific name variation (Atom).
Term Type (TTY)
SY
Synonym (Synonym of another TTY, given for clarity.)
Source Code
2385353
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):
Citric acid 0.01 mg/MG / lactic acid 0.018 mg/MG / Pot bitartrate 0.004 mg/MG Vaginal Gel [Phexxi]
(Atom ID: 12416623)

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
citric acid 0.01 MG/MG / lactic acid 0.018 MG/MG / Pot bitartrate 0.004 MG/MG Vaginal Gel [Phexxi]
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)
2385353
RxNorm Unique Identifier for the standardized concept.
Atom ID (RXAUI)
12416623
Unique identifier for this specific name variation (Atom).
Term Type (TTY)
SY
Synonym (Synonym of another TTY, given for clarity.)
Source Code
2385353
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.
SBDPrescribable

Semantic Branded Drug (SBD):
Citric acid 0.01 mg/MG / lactic acid 0.018 mg/MG / potassium bitartrate 0.004 mg/MG Vaginal Gel [Phexxi]
(Atom ID: 12416537)

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
citric acid 0.01 MG/MG / lactic acid 0.018 MG/MG / potassium bitartrate 0.004 MG/MG Vaginal Gel [Phexxi]
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)
2385353
RxNorm Unique Identifier for the standardized concept.
Atom ID (RXAUI)
12416537
Unique identifier for this specific name variation (Atom).
Term Type (TTY)
SBD
Semantic Branded Drug (Ingredient + Strength + Dose Form + Brand Name)
Source Code
2385353
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
{2385342} 21183
RXCUI of BOSS Active Ingredient preceded by RXCUI of SCDC responsible for value
RXN AI
{2385343} 28393
RXCUI of BOSS Active Ingredient preceded by RXCUI of SCDC responsible for value
RXN AI
{2385344} 223779
RXCUI of BOSS Active Ingredient preceded by RXCUI of SCDC responsible for value
RXN AM
{2385342} 21183
RXCUI of BOSS Active Moiety preceded by RXCUI of SCDC responsible for value
RXN AM
{2385343} 28393
RXCUI of BOSS Active Moiety preceded by RXCUI of SCDC responsible for value
RXN AM
{2385344} 223779
RXCUI of BOSS Active Moiety preceded by RXCUI of SCDC responsible for value
RXN AVAILABLE STRENGTH
0.01 MG/MG / 0.018 MG/MG (expressed as lactic acid) / 0.004 MG/MG
Available drug strengths listed in the order of ingredients from the drug
RXN BOSS FROM
{2385342} 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
{2385343} 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
{2385344} 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
Gel
The RxTerm dose form name for this drug
SYPrescribable

Synonym (SY):
Phexxi (lactic acid 1.8 % / citric acid 1 % / potassium bitartrate 0.4 % ) Vaginal Gel
(Atom ID: 12416539)

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
Phexxi (lactic acid 1.8 % / citric acid 1 % / potassium bitartrate 0.4 % ) Vaginal Gel
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)
2385353
RxNorm Unique Identifier for the standardized concept.
Atom ID (RXAUI)
12416539
Unique identifier for this specific name variation (Atom).
Term Type (TTY)
SY
Synonym (Synonym of another TTY, given for clarity.)
Source Code
2385353
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):
PHEXXI 1.8 % / 1 % / 0.4 % Vaginal Gel
(Atom ID: 12416538)

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
PHEXXI 1.8 % / 1 % / 0.4 % Vaginal Gel
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)
2385353
RxNorm Unique Identifier for the standardized concept.
Atom ID (RXAUI)
12416538
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
2385353
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

Lactic Acid, Citric Acid, and Potassium Bitartrate Vaginal Contraceptive


The combination of lactic acid, citric acid, and potassium bitartrate is used to prevent pregnancy when used just before vaginal sex in women who can become pregnant. It does not prevent pregnancy when used after vaginal sex. The combination of lactic acid, citric acid, and potassium bitartrate is in a class of medications called non-hormonal contraceptives. It works by lowering the pH of the vagina and reducing sperm motility. Lactic acid, citric acid, and potassium bitartrate may prevent pregnancy, but this medication will not prevent the spread of human immunodeficiency virus (HIV, the virus that causes acquired immunodeficiency syndrome [AIDS]) and other sexually transmitted diseases.
[Learn More]


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