Methotrexate Other names: Amethopterin 4-amino-10-methylfolic acid

Chemical formula: C₂₀H₂₂N₈O₅  Molecular mass: 454.439 g/mol  PubChem compound: 126941

Active ingredient description

Methotrexate (4-amino-10-methylfolic acid) is a folic acid antagonist which inhibits the reduction of folic acid and increase of tissue cells. Methotrexate enters the cell through an active transport mechanism of reduced folates. As a result of polyglutamation of methotrexate caused by the folylpolyglutamylate enzyme, the duration of the cytotoxic effect of the drug substance in the cell increases.

Medicine classification

This medicinal substance has been classified in the anatomical therapeutic chemical (ATC) classification according to its main therapeutic use as follows:

ATC code Group title Classification
L01BA01 Methotrexate L Antineoplastic and immunomodulating agents → L01 Antineoplastic agents → L01B Antimetabolites → L01BA Folic acid analogues
Discover more medicines within L01BA01
L04AX03 Methotrexate L Antineoplastic and immunomodulating agents → L04 Immunosuppressants → L04A Immunosuppressants → L04AX Other immunosuppressants
Discover more medicines within L04AX03

Product monographs

Competent medicine agencies globally have authorized commercialization of this active ingredient according to these medication package inserts (MPIs):

Title Information Source Document Type  
METHOTREXATE Tablets Medicines & Healthcare Products Regulatory Agency (GB) MPI, EU: SmPC
JYLAMVO Oral solution European Medicines Agency (EU) MPI, EU: SmPC
METOJECT PEN Solution for injection in pre-filled pen Medicines & Healthcare Products Regulatory Agency (GB) MPI, EU: SmPC
METHOTREXATE Solution for Injection Medicines & Healthcare Products Regulatory Agency (GB) MPI, EU: SmPC

Structural formula

Graphic representation of the active ingredient's molecular structure

3D molecular structure

3D representation of the active ingredient's molecular structure

External identifiers

CAS Substance: 59-05-2
DrugBank Drug: DB00563
KEGG Drug: D00142
PubChem Compound: 126941
RxNorm Ingredient: 6851
SNOMED-CT Concept: 387381009
Methotrexate (substance)
UNII Identifier: YL5FZ2Y5U1
METHOTREXATE

Medicines

Methotrexate is an active ingredient of these brands:

United States (US)

Austria (AT)

Canada (CA)

Cyprus (CY)

Ecuador (EC)

Estonia (EE)

Finland (FI)

France (FR)

Germany (DE)

Hong Kong (HK)

Ireland (IE)

Israel (IL)

Italy (IT)

Japan (JP)

Malta (MT)

Mexico (MX)

Netherlands (NL)

New Zealand (NZ)

Poland (PL)

Singapore (SG)

South Africa (ZA)

Spain (ES)

Tunisia (TN)

Turkey (TR)

United Kingdom (UK)

Note the following: The list of brand names is continuously updated, and thus does not include the total of products circulating worldwide.

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