Estradiol 1 mg [Estrace]
RxNorm 566973

Concept Hierarchy & Relationship Mapping

RxNorm Concept Unique Identifier (RxCUI) 566973 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: estradiol 1 mg [Estrace].

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

SBDC
Estradiol 1 mg [Estrace]
AUI:12305107

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

SBDCPrescribable

Semantic Branded Drug Component (SBDC):
Estradiol 1 mg [Estrace]
(Atom ID: 12305107)

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
estradiol 1 MG [Estrace]
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)
566973
RxNorm Unique Identifier for the standardized concept.
Atom ID (RXAUI)
12305107
Unique identifier for this specific name variation (Atom).
Term Type (TTY)
SBDC
Semantic Branded Drug Component (Ingredient + Strength + Brand Name)
Source Code
566973
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

Estradiol Topical


Estradiol topical gel and emulsion (lotion type mixture) are used to treat and prevent hot flushes (hot flashes; sudden strong feelings of heat and sweating) in women who are experiencing menopause (change of life; the end of monthly menstrual periods). Estradiol topical gel is also used to treat vaginal dryness, itching, and burning in women who are experiencing menopause. However, women whose only bothersome symptoms are vaginal burning, itching, and dryness may benefit more from a medication that is applied topically to the vagina. Estradiol is in a class of medications called estrogen hormones. It works by replacing estrogen that is normally produced by the body.
[Learn More]


Estrogen


Estrogen is used to treat hot flushes ('hot flashes'; sudden strong feelings of heat and sweating) in women who are experiencing menopause ('change of life', the end of monthly menstrual periods). Some brands of estrogen are also used to treat vaginal dryness, itching, or burning, or to prevent osteoporosis (a condition in which the bones become thin and weak and break easily) in women who are experiencing or have experienced menopause. However, women who need a medication only to treat vaginal dryness or only to prevent osteoporosis should consider a different treatment. Some brands of estrogen are also to relieve symptoms of low estrogen in young women who do not produce enough estrogen naturally. Some brands of estrogen are also used to relieve the symptoms of certain types of breast and prostate (a male reproductive gland) cancer. Estrogen is in a class of medications called hormones. It works by replacing estrogen that is normally produced by the body.
[Learn More]


Estrogen Vaginal


Vaginal estrogen is used to treat vaginal dryness, itching, and burning; painful or difficult urination; and sudden need to urinate immediately in women who are experiencing or have experienced menopause (change of life; the end of monthly menstrual periods). Femring® brand vaginal ring is also used to treat hot flushes ('hot flashes'; sudden strong feelings of heat and sweating) in women who are experiencing menopause. Premarin® brand vaginal cream is also used to treat kraurosis vulvae (a condition that may cause vaginal dryness and discomfort in women or girls of any age). Imvexxy® brand vaginal inserts are used for the treatment of dyspareunia (difficult or painful sexual intercourse) in menopausal women. Vaginal estrogen is in a class of medications called hormones. It works by replacing estrogen that is normally produced by the body.
[Learn More]


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