Regorafenib

Regorafenib  Uses

Regorafenib is used to treat cancer of the colon and rectum. It is also used to treat liver cancer and a certain cancer of the digestive system (gastrointestinal stromal tumor). It works by slowing or stopping the growth of cancer cells.

How to use Regorafenib Tablet

Read the Patient Information Leaflet if available from your pharmacist before you start taking regorafenib and each time you get a refill. If you have any questions, ask your doctor or pharmacist.

Take this medication by mouth with a low-fat meal as directed by your doctor, usually once daily for 21 days, then stopping the medication for 7 days. This is one cycle of treatment. Continue taking the medication this way as directed by your doctor. Swallow the medication whole. Do not crush, chew, or split the tablets.

The dosage is based on your medical condition and response to treatment. Do not increase your dose or use this drug more often or for longer than prescribed. Your condition will not improve any faster, and your risk of serious side effects will increase.

Take this medication regularly to get the most benefit from it. Remember to take it at the same time each day that you are scheduled to take it.

Avoid eating grapefruit or drinking grapefruit juice while using this medication unless your doctor or pharmacist says you may do so safely. Grapefruit can increase the chance of side effects with this medicine. Ask your doctor or pharmacist for more details.

Since this drug can be absorbed through the skin and lungs and may harm an unborn baby, women who are pregnant or who may become pregnant should not handle this medication or breathe the dust from the tablets.

Regorafenib  Side Effects

See also Warning section.

Diarrhea, pain/sores in the mouth/throat, changes in taste, dry mouth, loss of appetite, hair loss, voice changes, weight loss, or muscle stiffness may occur. If any of these effects persist or worsen, tell your doctor or pharmacist promptly.

People using this medication may have serious side effects. However, your doctor has prescribed this drug because he or she has judged that the benefit to you is greater than the risk of side effects. Careful monitoring by your doctor may decrease your risk.

Treatment with this drug may sometimes cause your hands/feet to develop a skin reaction called hand-foot skin reaction (palmar-plantar erythrodysesthesia). People of Asian descent are at greater risk. Tell your doctor right away if you experience swelling, pain, redness, peeling, blisters, or tingling/burning of the hands/feet. The symptoms can be made worse by heat/pressure on your hands/feet. Avoid prolonged sun exposure, tanning booths, and sunlamps, as well as unnecessary exposure to heat (for example, hot dishwater, long hot baths). Use a sunscreen and wear protective clothing when outdoors. Avoid pressure on elbows, knees, and soles of feet (such as leaning on elbows, kneeling, taking long walks). Wear loose clothing and comfortable shoes. Depending on how severe your hand-foot reaction is, your doctor may give you an additional medication to reduce the symptoms, or stop or delay your regorafenib treatment.

This medication may raise your blood pressure. Check your blood pressure regularly and tell your doctor if the results are high.

Tell your doctor right away if you have any serious side effects, including: slow wound healing, signs of dehydration (such as extreme thirst, dizziness, decreased urination), signs of mineral imbalance (such as muscle cramps/weakness, irregular heartbeat, mental/mood changes), signs of infection (such as fever, chills, persistent sore throat), signs of underactive thyroid (weight gain, cold intolerance, unusual tiredness, slow heartbeat).

This medication can cause serious bleeding. Tell your doctor right away if you have any signs of serious bleeding, including: easy bleeding/bruising, severe stomach/abdominal pain, vomit that is bloody or looks like coffee grounds, black/tarry stool, unusual vaginal bleeding, pink/bloody urine, coughing up blood.

Get medical help right away if you have any very serious side effects, including: signs of a heart attack (such as chest/jaw/left arm pain, shortness of breath, unusual sweating), seizure, severe headache, confusion, vision changes.

A very serious allergic reaction to this drug is rare. However, get medical help right away if you notice any symptoms of a serious allergic reaction, including: rash, itching/swelling (especially of the face/tongue/throat), severe dizziness, trouble breathing.

Regorafenib can commonly cause a mild rash that is usually not serious. However, you may not be able to tell it apart from a rare rash that could be a sign of a severe allergic reaction. Therefore, get medical help right away if you develop any rash.

This is not a complete list of possible side effects. If you notice other effects not listed above, contact your doctor or pharmacist.

Regorafenib  Precautions

Before taking regorafenib, tell your doctor or pharmacist if you are allergic to it; 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: liver problems, high blood pressure, heart disease (such as heart attack, chest pain), bleeding problems (such as bleeding of the stomach/intestines), recent major surgery/injury.

Before having surgery, tell your doctor or dentist about all the products you use (including prescription drugs, nonprescription drugs, and herbal products). Your doctor or dentist may tell you to stop taking regorafenib at least 2 weeks before surgery. This medication may cause wounds to heal more slowly. Follow all instructions about when to stop or restart this medication.

Do not have immunizations/vaccinations without the consent of your doctor. Avoid contact with people who have recently received live vaccines (such as flu vaccine inhaled through the nose). Wash your hands well to prevent the spread of infections.

To lower the chance of getting cut, bruised, or injured, use caution with sharp objects like razors and nail cutters, and avoid activities such as contact sports.

Older adults may be at greater risk for high blood pressure while using this drug.

Tell your doctor if you are pregnant or plan to become pregnant. You should not become pregnant while using regorafenib. Regorafenib may harm an unborn baby. Both women and men should ask about reliable forms of birth control while using this medication and for 2 months after stopping treatment. If you or your partner becomes pregnant, talk to your doctor right away about the risks and benefits of this medication.

Since this drug can be absorbed through the skin and lungs and may harm an unborn baby, women who are pregnant or who may become pregnant should not handle this medication or breathe the dust from the tablets.

It is unknown if this medication passes into breast milk. Because of the possible risk to the infant, breast-feeding while using this drug and for 2 weeks after stopping treatment is not recommended. Consult your doctor before breast-feeding.

Regorafenib  Interactions

See also How to Use section.

Drug interactions may change how your medications work or increase your risk for serious side effects. This document does not contain all possible drug interactions. Keep a list of all the products you use (including prescription/nonprescription drugs and herbal products) and share it with your doctor and pharmacist. Do not start, stop, or change the dosage of any medicines without your doctor's approval.

Some products that may interact with this drug include: irinotecan, other drugs that can cause bleeding/bruising (including antiplatelet drugs such as clopidogrel, NSAIDs such as ibuprofen, "blood thinners" such as warfarin).

 Aspirin can increase the risk of bleeding when used with this medication. However, if your doctor has directed you to take low-dose aspirin for heart attack or stroke prevention (usually at dosages of 81-325 milligrams a day), you should continue taking it unless your doctor instructs you otherwise. Ask your doctor or pharmacist for more details.

Other medications can affect the removal of regorafenib from your body, which may affect how regorafenib works. Examples include boceprevir, nefazodone, telaprevir, telithromycin, azole antifungals (such as ketoconazole, itraconazole), macrolide antibiotics (such as clarithromycin), HIV protease inhibitors (such as ritonavir, nelfinavir), rifamycins (such as rifabutin, rifampin), St. John's wort, drugs used to treat seizures (such as phenytoin), among others.

Note:  We strongly encourage you to talk with your health care professional about your specific medical condition and treatments. The information contained in this website is meant to be helpful and educational, but is not a substitute for medical advice.

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