Methotrexate 50 mg/ML
RxNorm 328404

Concept Hierarchy & Relationship Mapping

RxNorm Concept Unique Identifier (RxCUI) 328404 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: methotrexate 50 mg/ML.

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

SCDC
Methotrexate 50 mg/ML
AUI:12279714

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

SCDCPrescribable

Semantic Clinical Drug Component (SCDC):
Methotrexate 50 mg/ML
(Atom ID: 12279714)

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
methotrexate 50 MG/ML
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)
328404
RxNorm Unique Identifier for the standardized concept.
Atom ID (RXAUI)
12279714
Unique identifier for this specific name variation (Atom).
Term Type (TTY)
SCDC
Semantic Clinical Drug Component (Ingredient + Strength)
Source Code
328404
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 BOSS STRENGTH DENOM UNIT
ML
RXN Boss Strength Denom Unit
RXN BOSS STRENGTH DENOM VALUE
1
RXN Boss Strength Denom Value
RXN BOSS STRENGTH NUM UNIT
MG
RXN Boss Strength Num Unit
RXN BOSS STRENGTH NUM VALUE
50
RXN Boss Strength Num Value
RXN STRENGTH
50 MG/ML
Strength plus unit of SCDC

Patient Education

Methotrexate Injection


Methotrexate injection is used alone or in combination with other medications: to treat certain types of acute lymphocytic leukemia (ALL) in adults and children; to treat or prevent meningeal leukemia (cancer in the covering of the spinal cord and brain) in adults and children; to treat certain types of non-Hodgkin's lymphoma (types of cancer that begin in a type of white blood cells that normally fights infection) in adults and children; to treat osteosarcoma (cancer that forms in bones) after surgery to remove the tumor in adults and children; to treat cutaneous T-cell lymphoma (CTCL, a group of cancers of the immune system that first appear as skin rashes); to treat breast cancer in adults; to treat certain cancers of the head and neck in adults; to treat gestational trophoblastic tumors (a type of tumor that forms inside a woman's uterus when pregnant) in adults; to treat rheumatoid arthritis (RA; a condition in which the body attacks its own joints, causing pain, swelling, and loss of function) in adults; to treat polyarticular juvenile idiopathic arthritis (pJIA; a type of childhood arthritis that affects five or more joints during the first six months of the condition, causing pain, swelling, and loss of function) in children; and to treat severe psoriasis (a skin disease in which red, scaly patches form on some areas of the body) in adults. Methotrexate is in a class of medications called antimetabolites. Methotrexate treats cancer by slowing the growth of cancer cells. Methotrexate treats psoriasis by slowing the growth of skin cells to stop scales from forming. Methotrexate may treat rheumatoid arthritis and polyarticular juvenile idiopathic arthritis by decreasing the activity of the immune system.
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Cancer Chemotherapy


Normally, your cells grow and die in a controlled way. Cancer cells keep growing without control. Chemotherapy is drug therapy for cancer. It works by killing the cancer cells, stopping them from spreading, or slowing their growth. However, it can also harm healthy cells, which causes side effects.

You may have a lot of side effects, some, or none at all. It depends on the type and amount of chemotherapy you get and how your body reacts. Some common side effects are fatigue, nausea, vomiting, pain, and hair loss. There are ways to prevent or control some side effects. Talk with your health care provider about how to manage them. Healthy cells usually recover after chemotherapy is over, so most side effects gradually go away.

Your treatment plan will depend on the cancer type, the chemotherapy drugs used, the treatment goal, and how your body responds. Chemotherapy may be given alone or with other treatments. You may get treatment every day, every week, or every month. You may have breaks between treatments so that your body has a chance to build new healthy cells. You might take the drugs by mouth, in a shot, as a cream, or intravenously (by IV).

NIH: National Cancer Institute


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