" /> Tegafur-gimeracil-oteracil Potassium - CISMeF





Preferred Label : Tegafur-gimeracil-oteracil Potassium;

NCIt synonyms : Tegafur, mixture with Gimeracil and Potassium Oxonate; Tegafur/Gimeracil/Oteracil;

NCIt related terms : S-1; BMS-247616; Tegafur gimeracil oteracil;

NCIt definition : An orally bioavailable fluoropyrimidine antagonist composed of tegafur combined with two modulators of 5-fluorouracil (5-FU) activity, gimeracil and potassium oxonate, in a molar ratio of 1:0.4:1. Tegafur is a prodrug of 5-fluorouracil, an antimetabolite that inhibits thymidylate synthase, DNA synthesis and cell division, and competes with uridine triphosphate, thus inhibiting RNA and protein synthesis. Gimeracil is a reversible inhibitor of dihydropyrimidine dehydrogenase (DPD), the liver enzyme responsible for rapid catabolism of 5-FU into inactive metabolites. Potassium oxonate preferentially localizes in the gut and inhibits the enzyme orotate phosphoribosyl-transferase (OPRT), thereby decreasing activation of 5-FU in the gut and activated 5-FU-related gastrointestinal toxicity.;

Alternative definition : NCI-GLOSS: A drug that is being studied for its ability to enhance the effectiveness of fluorouracil and prevent gastrointestinal side effects caused by fluorouracil. It belongs to the family of drugs called antimetabolites.;

CAS number : 154239-56-2;

Drug name : Teysuno; TS-One;

Molecule name : S-1; BMS 247616; TS-1;

Codes from synonyms : 50585; CDR0000046716; 481;

PubMed : 15224197;

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11/05/2025


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