Capecitabine is a type of chemotherapy medicine used in adults to treat some types of cancer. It works by interfering with the growth of cancer cells.
It belongs to a family of medicines called antimetabolites. Antimetabolites work by tricking cancer cells into using the medicine’s building blocks instead of the cancer cell’s building blocks. The cancer cell then can’t divide and grow.
In Aotearoa New Zealand it’s used for cancers of the breast, bowel, rectum, stomach and food pipe (oesophagus). It’s sometimes used together with other chemotherapy medicines.
Read more about chemotherapy medicines.
Capecitabine may not be suitable for everyone
Some people are at greater risk of side effects from capecitabine because they lack or don’t have enough of the enzyme that processes capecitabine in the body.
This enzyme is called DPD (dihydropyrimidine dehyrogenase) and is made in the liver.
- If you have little or no DPD enzyme you can get serious side effects, which may be life-threatening.
- Before starting treatment with capecitabine, you may be tested for the DPD gene. If you’re at risk of serious side effects you may be offered a lower dose or a different medicine.
- Read more about how your genes affect the way you respond to some medicines (pharmacogenomics).