Epimedium grandiflorum top extract
RxNorm 1311044

Concept Hierarchy & Relationship Mapping

RxNorm Concept Unique Identifier (RxCUI) 1311044 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: Epimedium grandiflorum top extract.

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

IN
Epimedium grandiflorum top extract
AUI:4661183
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This clinical crossover tool is designed for healthcare professionals, pharmacists, and data analysts to safely compare substitute products and manage medication interoperability.

INPrescribable

Ingredient (IN):
Epimedium grandiflorum top extract
(Atom ID: 4661183)

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
Epimedium grandiflorum top extract
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)
1311044
RxNorm Unique Identifier for the standardized concept.
Atom ID (RXAUI)
4661183
Unique identifier for this specific name variation (Atom).
Term Type (TTY)
IN
Ingredient (A compound or moiety that gives the drug its distinctive clinical properties. Ingredients generally use the United States Adopted Name (USAN).)
Source Code
1311044
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.
UNII Crosswalk
137PC46F89 - EPIMEDIUM GRANDIFLORUM TOP (INGREDIENT SUBSTANCE)
RxNorm to Unique Ingredient Identifier crosswalk.

Patient Education

Horny Goat Weed


What is it? Horny goat weed refers to various herb species of the Epimedium genus, and may be known as "yin yang huo." It has limited evidence of health benefits.

Horny goat weed contains chemicals that might help increase blood flow and improve sexual function. It also contains phytoestrogens, chemicals that act somewhat like the hormone estrogen.

People use horny goat weed for erectile dysfunction (ED), sexual problems, weak and brittle bones, health problems after menopause, and other conditions, but there is no good scientific evidence to support any of these uses.


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