Capecitabine may interact with "blood thinners" (anticoagulants such as warfarin or phenprocoumon) and cause serious, rarely fatal bleeding. In some cases, this bleeding has occurred up to one month after stopping capecitabine as well as during treatment.
If you are using an anticoagulant, your laboratory tests (INR/PT) will be closely monitored. Report any signs of bleeding or bruising (such as black stools) to your doctor immediately.Who should not take capecitabine?
Capecitabine is used alone or with other treatments/medications to treat certain types of cancer (e.g., of the breast, colon, rectum). It works by slowing or stopping cancer cell growth and by decreasing tumor size.
Read the Patient Information Leaflet provided by your pharmacist before you start taking capecitabine and each time you get a refill. If you have any questions regarding the information, consult your doctor or pharmacist.
Take this medication by mouth, usually twice daily in the morning and evening or as directed by your doctor. It is best to take this with a full glass of water (8 ounces or 240 milliliters) within 30 minutes after the end of a meal. Swallow the tablets whole. Do not crush or split the tablets. Capecitabine is usually taken every day for 2 weeks, then stopped for 1 week. This course of treatment may be repeated as directed by your doctor.
If you take any antacid products that contain aluminum or magnesium, take capecitabine 2 hours before or after taking any antacids because these products may change the way your body absorbs capecitabine.
The dosage is based on your medical condition, body size, and response to therapy. You may be taking a combination of different tablet sizes. Pay close attention to your dose and tablet sizes to avoid over- or under-dosing.
Do not increase your dose or take this medication more often than directed without your doctor's approval. Your condition will not improve any faster, and the risk of serious side effects may increase.
Nausea, vomiting, loss of appetite, constipation, tiredness, weakness, back/joint/muscle pain, headache, dizziness, trouble sleeping, skin darkening, or dry/itchy skin may occur. Nausea and vomiting can be severe. Changes in diet and lifestyle, such as eating several small meals or limiting activity, may lessen some of these effects. If any of these effects continue or worsen, notify your doctor.
Diarrhea is a common side effect of this medication. It may become very severe (possibly fatal). To decrease this side effect, your doctor may prescribe medication (e.g., loperamide) to control your symptoms, replace lost fluids by vein, or stop treatment with capecitabine. Drink plenty of fluids to prevent serious problems due to a loss of too much body water (dehydration). If you experience signs of severe diarrhea (e.g., 4 or more stools per day, diarrhea at night, bloody stools), or if you experience signs of dehydration (e.g., dizziness, decreased amount of urine), stop taking this drug and tell your doctor immediately.
Stop taking capecitabine and tell your doctor immediately if you have any of these serious side effects: severe nausea/vomiting (vomiting 2 or more times per day, inability to eat or keep food/fluids in your stomach), painful redness/swelling/sores in mouth or throat.
If any of the above symptoms occur, your doctor may lower your dose when you start taking capecitabine again or may stop treatment with this drug.
Treatment with capecitabine may sometimes cause your hands/feet to develop a skin reaction called hand-foot syndrome (palmar-plantar erythrodysesthesia). You can prevent or reduce these problems by protecting your hands and feet from a great deal of heat or pressure. Avoid unnecessary exposure to heat (e.g., hot dishwater, long hot baths). Avoid pressure on elbows, knees, and soles of feet (e.g., leaning on elbows, kneeling, long walks). Wear loose clothing. Depending on how severe your hand-foot syndrome is, your doctor may prescribe a medication to reduce the symptoms or decrease/delay your next dose of capecitabine. If you experience pain/swelling/redness, blisters, or numbness of the hands/feet that affects your usual activities, stop taking this medication and tell your doctor immediately.
This medication can lower your ability to fight an infection. Stop taking this medication and call your doctor promptly if you develop any signs of an infection such as high fever, chills, or persistent sore throat.
Tell your doctor right away if you have any serious side effects, including: abdominal/stomach pain, unusual bruising or bleeding, extreme tiredness, mental/mood changes (e.g., depression), swelling of the ankles/feet, vision changes, shortness of breath, change in the amount of urine, dark urine, yellowing of the eyes/skin, fast/irregular heartbeat.
Get medical help right away if you have any very serious side effects, including: chest/jaw/left arm pain, fainting.
This is not a complete list of possible side effects. If you notice other side effects not listed above, contact your doctor or pharmacist.
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Before taking capecitabine, tell your doctor or pharmacist if you are allergic to it; or to 5-fluorouracil; or if you have any other allergies. This product may contain inactive ingredients, which can cause allergic reactions or other problems. Talk to your pharmacist for more details.
Before using this medication, tell your doctor or pharmacist your medical history, especially of: a certain enzyme deficiency (dihydropyrimidine dehydrogenase deficiency), blood disorders (e.g., bone marrow suppression), heart problems (e.g., coronary artery disease, heart failure), kidney disease, liver problems.
Wash your hands well to prevent the spread of infections.
Do not have immunizations/vaccinations without the consent of your doctor, and avoid contact with people who have recently received oral polio vaccine.
This medication may make you more sensitive to the sun. Avoid prolonged sun exposure, tanning booths, and sunlamps. Use an effective sunscreen and wear protective clothing when outdoors. This will also help protect you from problems related to heat (hand/foot syndrome). See Side Effects section for more information.
To lower the chance of getting cut, bruised or injured, use caution with sharp objects like safety razors and nail cutters, and avoid activities such as contact sports. Use a soft-bristle toothbrush to lower the risk of bleeding gums.
Caution is advised when this drug is used in the elderly because they may be more sensitive to the side effects of this medication, especially nausea, vomiting, and diarrhea.
This medication is not recommended for use during pregnancy. It may harm an unborn baby. Discuss the use of reliable forms of birth control (such as condoms, birth control pills) with your doctor.
It is not known if this drug passes into breast milk. Because of possible harm to the nursing infant, breast-feeding while using this drug is not recommended. Consult your doctor before breast-feeding.
See also Warning section.
Some products that may interact with this drug include: folic acid (including multivitamins with folic acid), leucovorin, metronidazole, tinidazole.
This medication can slow down the removal of other medications from your body, which may affect how they work. Examples of affected drugs include "blood thinners" (such as warfarin), fosphenytoin, phenytoin, among others.
Capecitabine is very similar to fluorouracil. Do not use medications containing fluorouracil while using capecitabine.
Do not share this medication with others.
Laboratory and/or medical tests (e.g., bilirubin levels, complete blood counts, kidney and liver function tests) should be performed regularly to monitor your progress and check for side effects.
If you miss a dose, do not take the missed dose and do not double the next dose. Continue your regular dosing schedule and check with your doctor.
Store at room temperature in a tightly closed container away from light and moisture. Do not store in the bathroom. Keep all medications away from children and pets.
MEDICAL ALERT: Your condition can cause complications in a medical emergency. For information about enrolling in MedicAlert, call 1-888-633-4298 (US) or 1-800-668-1507 (Canada).
Information last revised March 2015. Copyright(c) 2015 First Databank, Inc.
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