NCIt definition : A lipid soluble methotrexate derivative with potential antineoplastic activity. Trimetrexate
glucuronate inhibits the enzyme dihydrofolate reductase, thereby preventing the synthesis
of purine nucleotides and thymidylate, with subsequent inhibition of DNA and RNA synthesis.
Trimetrexate glucuronate also exhibits antiviral activity. (NCI04);
Alternative definition : NCI-GLOSS: A drug that belongs to the family of drugs called antimetabolites. It is
used in the treatment of pneumocystis carinii pneumonia and is being studied in the
treatment of cancer.;