Detailed Drug Information:

DRUG CLASS AND MECHANISM: Capecitabine is an oral medication for treating advanced breast cancers that are resistant to combination therapy with the drugs of choice, paclitaxel(Taxol) and a drug from the anthracycline family of drugs, for example, doxorubicin (Adriamycin). Capecitabine is converted by the body to 5-fluorouracil (5-FU), a drug which has been given intravenously for many years to treat various types of cancer. It is not surprising, therefore,that capecitabine also has shown promise in the treatment of colorectal cancer, a type of cancer which is treated frequently with 5-FU. 5-FU inhibits the production of both DNA and protein by the cancerous cells that are necessary for the cells to divide and the cancer to grow in size.Capecitabine was approved by the FDA in 1998.

PREPARATIONS: Tablets: 150mg and 500mg.

STORAGE: Tablets should be stored at room temperature, 15-30 °C (59-86 °F).

PRESCRIBED FOR: Capecitabine is used for treating women with breast cancer that is resistant to other more commonly-used drugs.

DOSING: Capecitabine generally is taken twice daily, with the two doses approximately 12 hours apart. Tablets should be taken 30 minutes after eating. Capecitabine usually is prescribed in repeated cycles of 3-weeks, with the drug taken for two consecutive weeks followed by a week without drug. Some patients may need lower or delayed dosing. As always, the physician's dosing instructions should be followed.

DRUG INTERACTIONS: There are no known drug interactions with capecitabine.

PREGNANCY: Capecitabine can damage the fetus. It should not be taken by pregnant women.

NURSING MOTHERS: It is not known whether capecitabine is secreted into breast milk.

SIDE EFFECTS: The most common side effects with capecitabine are diarrhea, nausea, vomiting, painful swelling of the mouth, fatigue, painful rash and swelling of the hands or feet, low white blood cell count (which can lead to infections), low blood platelet counts (which can lead to bleeding), and anemia. About one of every three patients who receives capecitabine has serious side effects, but these side effects usually are reversible when the drug is stopped or when the dose is lowered.