Capecitabine

Capecitabine, sold under the brand name Xeloda among others, is a anticancer medication used to treat breast cancer, gastric cancer and colorectal cancer. For breast cancer it is often used together with docetaxel. It is taken by mouth.

Capecitabine
Clinical data
Pronunciation/kæpɪˈsaɪtəbiːn/
Trade namesXeloda, Xitabin, Kapetral, others
AHFS/Drugs.comMonograph
MedlinePlusa699003
License data
Pregnancy
category
  • AU: D
Routes of
administration		By mouth
Drug classchemotherapy agent
ATC code
Legal status
Legal status
  • AU: S4 (Prescription only)
  • CA: ℞-only
  • UK: POM (Prescription only)
  • US: WARNINGRx-only
  • EU: Rx-only
Pharmacokinetic data
BioavailabilityExtensive
Protein binding< 60%
Metabolismliver, to 5'-DFCR, 5'-DFUR (inactive); neoplastic tissue, 5'-DFUR to active fluorouracil
Elimination half-life38–45 minutes
Excretionkidney (95.5%), faecal (2.6%)
Identifiers
  • Pentyl [1-(3,4-dihydroxy-5-methyltetrahydrofuran-2-yl)-5-fluoro-2-oxo-1H-pyrimidin-4-yl]carbamate
CAS Number
PubChem CID
IUPHAR/BPS
DrugBank
ChemSpider
UNII
KEGG
ChEBI
ChEMBL
CompTox Dashboard (EPA)
ECHA InfoCard100.112.980
Chemical and physical data
FormulaC15H22FN3O6
Molar mass359.354 g·mol−1
3D model (JSmol)
SMILES
  • FC=1\C(=N/C(=O)N(C=1)[C@@H]2O[C@@H]([C@@H](O)[C@H]2O)C)\NC(=O)OCCCCC
  • InChI=1S/C15H22FN3O6/c1-3-4-5-6-24-15(23)18-12-9(16)7-19(14(22)17-12)13-11(21)10(20)8(2)25-13/h7-8,10-11,13,20-21H,3-6H2,1-2H3,(H,17,18,22,23)/t8-,10-,11-,13-/m1/s1 Y
  • Key:GAGWJHPBXLXJQN-UORFTKCHSA-N Y
  (verify)

Common side effects include abdominal pain, vomiting, diarrhea, weakness, and rashes. Other severe side effects include blood clotting problems, allergic reactions, heart problems such as cardiomyopathy, and low blood cell counts. Use during pregnancy may result in harm to the fetus. Capecitabine, inside the body, is converted to 5-fluorouracil (5-FU) through which it acts. It belongs to the class of medications known as fluoropyrimidines, which also includes 5-FU and tegafur.

Capecitabine was patented in 1992 and approved for medical use in 1998. It is on the World Health Organization's List of Essential Medicines.

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