Trimethoprim

Chemical formula: C₁₄H₁₈N₄O₃  Molecular mass: 290.318 g/mol  PubChem compound: 5578

Active ingredient description

Trimethoprim is a dihydrofolate reductase inhibitor, inhibiting the conversion of bacterial dihydrofolic acid to tetrahydrofolic acid, required for the synthesis of some amino acids. Its effects are considerably greater on the cells of micro-organisms than on the mammalian cells.

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
J01EA01 Trimethoprim J Antiinfectives for systemic use → J01 Antibacterials for systemic use → J01E Sulfonamides and trimethoprim → J01EA Trimethoprim and derivatives
Discover more medicines within J01EA01

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  
TRIMOPTIN Tablet Health Products Regulatory Authority (IE) MPI, EU: SmPC

Structural formula

Graphic representation of the active ingredient's molecular structure

External identifiers

CAS Substance: 738-70-5
DrugBank Drug: DB00440
KEGG Drug: D00145
PubChem Compound: 5578
RxNorm Ingredient: 10829
SNOMED-CT Concept: 387179001
Trimethoprim (substance)
UNII Identifier: AN164J8Y0X
TRIMETHOPRIM

Medicines

Trimethoprim is an active ingredient of these brands:

United States (US)

Australia (AU)

Austria (AT)

Brazil (BR)

Canada (CA)

Croatia (HR)

Cyprus (CY)

Ecuador (EC)

Estonia (EE)

Finland (FI)

France (FR)

Germany (DE)

Hong Kong (HK)

Ireland (IE)

Israel (IL)

Japan (JP)

Lithuania (LT)

Malta (MT)

Mexico (MX)

Netherlands (NL)

New Zealand (NZ)

Nigeria (NG)

Poland (PL)

Romania (RO)

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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