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Details

Stereochemistry ACHIRAL
Molecular Formula C5H4ClNO2
Molecular Weight 145.544
Optical Activity NONE
Defined Stereocenters 0 / 0
E/Z Centers 0
Charge 0

SHOW SMILES / InChI
Structure of GIMERACIL

SMILES

OC1=CC(=O)NC=C1Cl

InChI

InChIKey=ZPLQIPFOCGIIHV-UHFFFAOYSA-N
InChI=1S/C5H4ClNO2/c6-3-2-7-5(9)1-4(3)8/h1-2H,(H2,7,8,9)

HIDE SMILES / InChI

Description

Gimeracil is a component of an oral fixed combination known under the name Teysuno or S-1 (tegafur, gimeracil and oteracil potassium at a molar ratio of 1:0.4:1). The formulation was approved in Asia and Europe for the treatment of a rare condition of gastric cancer. Given in combination, gimeracil enhances the efficacy of tegafur by inhibiting dihydropyrimidine dehydrogenase, an enzyme involved in metabolism of tegafur and its active metabolite 5-fluorouracil.

CNS Activity

Originator

Approval Year

Targets

Primary TargetPharmacologyConditionPotency
95.0 nM [IC50]

Conditions

ConditionModalityTargetsHighest PhaseProduct
Primary
TEYSUNO

Cmax

ValueDoseCo-administeredAnalytePopulation
452 ng/mL
14.5 mg single, oral
GIMERACIL plasma
Homo sapiens
305 ng/mL
14.5 mg single, oral
GIMERACIL plasma
Homo sapiens

AUC

ValueDoseCo-administeredAnalytePopulation
1884 ng × h/mL
14.5 mg single, oral
GIMERACIL plasma
Homo sapiens
1483 ng × h/mL
14.5 mg single, oral
GIMERACIL plasma
Homo sapiens
3 mg × h/L
12.08 mg single, oral
GIMERACIL plasma
Homo sapiens

T1/2

ValueDoseCo-administeredAnalytePopulation
3.6 h
14.5 mg single, oral
GIMERACIL plasma
Homo sapiens

Funbound

ValueDoseCo-administeredAnalytePopulation
67.8%
14.5 mg single, oral
GIMERACIL plasma
Homo sapiens

Doses

AEs

PubMed

Sample Use Guides

In Vivo Use Guide
The recommended dose of gimeracil is 10 mg/m2 (as a part of oral combination consisting of tegafur, gimeracil and oteracil potassium at a molar ratio of 1:0.4:1) twice a day, for 21 consecutive days followed by 7 days rest.
Route of Administration: Oral
In Vitro Use Guide
TE-5 and TE-5R cells were plated in a 96-well plate and cultured for 24 h, and then they were treated with the indicated concentrations of 5-FU in the presence of gimeracil for 72 h at a molar ratio of 1:0.2 (5-FU:gimeracil). IC50 values with and without gimeracil in TE-5 cells were 4.9 and 4.8 uM, respectively, and those in TE-5R cells were 20.8 and 59.0 uM, respectively.