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|How does this medication work? What will it do for me?|
Regorafenib belongs to the class of medications known as antineoplastics, or anti-cancer medications. Specifically it belongs to the group of medications called multikinase inhibitors. It is used to treat metastatic colorectal cancer (cancer that has spread) after treatment with other medications has not been successful. Regorafenib is also used to treat metastatic gastrointestinal stromal tumours (GIST) that are not treatable with surgery in people who have already received treatment with imatinib and sunitinib.
Regorafenib is believed to prevent the growth and spread of cancer cells by interfering with the development of the blood vessel system that supplies the tumour.
This medication may be available under multiple brand names and/or in several different forms. Any specific brand name of this medication may not be available in all of the forms or approved for all of the conditions discussed here. As well, some forms of this medication may not be used for all of the conditions discussed here.
Your doctor may have suggested this medication for conditions other than those listed in these drug information articles. If you have not discussed this with your doctor or are not sure why you are taking this medication, speak to your doctor. Do not stop taking this medication without consulting your doctor.
Do not give this medication to anyone else, even if they have the same symptoms as you do. It can be harmful for people to take this medication if their doctor has not prescribed it.
|How should I use this medication?|
Regorafenib is taken in cycles of 4 weeks. The recommended adult dose of regorafenib is 160 mg (4 tablets) taken by mouth once daily for 3 weeks, followed by 1 week off.
This medication should be taken at the same time each day after eating a light, low-fat, low-calorie meal. Swallow the tablets whole with water. Do not crush or chew the tablets.
Many things can affect the dose of medication that a person needs, such as body weight, other medical conditions, and other medications. If your doctor has recommended a dose different from the ones listed here, do not change the way that you are taking the medication without consulting your doctor.
It is important to take this medication exactly as prescribed by your doctor. If you miss a dose, take it as soon as possible and continue with your regular schedule. If it is almost time for your next dose, skip the missed dose and continue with your regular dosing schedule. Do not take two doses on the same day to make up for a missed one and do not take a double dose to make up for a missed one. If you are not sure what to do after missing a dose, contact your doctor or pharmacist for advice.
Store this medication in its original container at room temperature, protect it from light and moisture, and keep it out of the reach of children. Keep the dessicant packet in the bottle. Once the bottle is opened, the medication should be discarded after 28 days.
|What form(s) does this medication come in?|
|Who should NOT take this medication?|
Do not take this medication if you are allergic to regorafenib or any ingredients of the medication.
|What side effects are possible with this medication?|
Many medications can cause side effects. A side effect is an unwanted response to a medication when it is taken in normal doses. Side effects can be mild or severe, temporary or permanent.
The side effects listed below are not experienced by everyone who takes this medication. If you are concerned about side effects, discuss the risks and benefits of this medication with your doctor.
The following side effects have been reported by at least 1% of people taking this medication. Many of these side effects can be managed, and some may go away on their own over time.
Contact your doctor if you experience these side effects and they are severe or bothersome. Your pharmacist may be able to advise you on managing side effects.
Although most of the side effects listed below don't happen very often, they could lead to serious problems if you do not check with your doctor or seek medical attention.
Check with your doctor as soon as possible if any of the following side effects occur:
Stop taking the medication and seek immediate medical attention if any of the following occur:
Some people may experience side effects other than those listed. Check with your doctor if you notice any symptom that worries you while you are taking this medication.
|Are there any other precautions or warnings for this medication?|
Before you begin using a medication, be sure to inform your doctor of any medical conditions or allergies you may have, any medications you are taking, whether you are pregnant or breast-feeding, and any other significant facts about your health. These factors may affect how you should use this medication.
Anemia: Regorafenib may cause low levels of red blood cells. If you experience symptoms of reduced red blood cell count (anemia) such as shortness of breath, feeling unusually tired or pale skin, contact your doctor as soon as possible.
Your doctor will do blood tests regularly to monitor the number of specific types of blood cells, including red blood cells, in your blood.
Bleeding: Regorafenib may cause a reduced number of platelets in the blood, which can make it difficult to stop cuts from bleeding. If you have a medical condition or are taking medication that affect blood clotting, discuss with your doctor how this medication may affect your medical condition, how your medical condition may affect the dosing and effectiveness of this medication, and whether any special monitoring is needed. Your doctor will order routine blood tests to make sure potential problems are caught early.
If you notice any signs of bleeding, such as frequent nosebleeds, or unexplained bruising, notify your doctor as soon as possible. If you notice signs of bleeding in the stomach such as black and tarry stools, vomiting material that looks like coffee grounds or passing blood in the stool, contact your doctor immediately.
Fluid and electrolyte balance: This medication may cause the levels of electrolytes such as potassium, sodium, magnesium, chloride, and calcium in the blood to change while taking this medication. If you experience symptoms of fluid and electrolyte imbalance such as muscle pains or cramps; dry mouth; numb hands, feet, or lips; or racing heartbeat, contact your doctor as soon as possible. Your doctor will do blood tests regularly to monitor the levels of these electrolytes in your blood while you are taking this medication.
Gastrointestinal problems: Rarely, regorafenib can cause perforation of the stomach or intestines. If you experience severe abdominal pain, fever, vomiting, or nausea, contact your doctor immediately.
Hand-Foot Skin Reaction: This medication may cause a tingling, burning sensation on the palms of the hands or soles of the feet. This can progress to swelling or thickening of the skin on the hands and feet. In more severe cases, sores develop, sometimes with blisters or shedding the skin. This reaction is not life-threatening but can be very uncomfortable and treatable. If you notice any early signs of this reaction, contact your doctor as soon as possible.
Heart disease: Changes in heart rhythm (arrhythmia), decreased heart rate, increased blood pressure, and heart attack may occur with the use of this medication. If you have a history of heart problems, discuss with your doctor how this medication may affect your medical condition, how your medical condition may affect the dosing and effectiveness of this medication, and whether any special monitoring is needed.
If you experience signs of a heart attack, such as sudden chest pain or pain radiating to back, down arm, jaw; sensation of fullness of the chest; nausea, vomiting, sweating, or anxiety, get medical help immediately.
Infection: As well as killing cancer cells, regorafenib can reduce the number of cells that fight infection in the body (white blood cells). If possible, avoid contact with people with contagious infections.
Tell your doctor immediately if you notice signs of an infection, such as fever or chills, severe diarrhea, shortness of breath, prolonged dizziness, headache, stiff neck, weight loss, or listlessness. Your doctor will do blood tests regularly to monitor the number of specific types of blood cells in your blood.
Liver function: Regorafenib may reduce liver function and can cause liver failure. If you have liver problems, discuss with your doctor how this medication may affect your medical condition, how your medical condition may affect the dosing and effectiveness of this medication, and whether any special monitoring is needed. Your doctor may want to test your liver function regularly with blood tests while you are taking this medication.
If you experience symptoms of liver problems such as fatigue, feeling unwell, loss of appetite, nausea, yellowing of the skin or whites of the eyes, dark urine, pale stools, abdominal pain or swelling, and itchy skin, contact your doctor immediately.
Reversible Posterior Leukoencephalopathy Syndrome (RPLS): This is a rare disease of the brain that may occur when using medications like regorafenib. If you have had a previous episode of RPLS, regorafenib may not be an appropriate medication for you. Make sure your doctor knows you have experienced this before. If you experience signs and symptoms of RPLS, such as headache, seizures, change in awareness or consciousness or vision changes, contact your doctor immediately.
Skin rash: Regorafenib may cause skin rash or itchiness with or without a rash. Rarely, people taking regorafenib experience a severe skin reaction that can be life-threatening. If you experience a rash that gets worse, or develops into blisters, sores on the lips or eyes or covers a large area of the body, contact your doctor immediately.
Surgery: This medication causes changes to the blood and any slow down the healing process for wounds. Make sure anyone involved in your medical care knows you are taking regorafenib.
Pregnancy: There is no information about the effect of regorafenib on an unborn baby if this medication is used during pregnancy. Women who may become pregnant while taking this medication must use an effective form of birth control, even if they have not had their first menstrual period. Effective birth control must be used by both women and men during treatment with regorafenib, and for at least eight weeks following the discontinuation of treatment. If you become pregnant while taking this medication, contact your doctor immediately.
Breast-feeding: It is not known if regorafenib passes into breast milk. If you are a breast-feeding mother and are taking this medication, it may affect your baby. Talk to your doctor about whether you should continue breast-feeding.
Children: The safety and effectiveness of using this medication have not been established for children.
|What other drugs could interact with this medication?|
There may be an interaction between regorafenib and any of the following:
If you are taking any of these medications, speak with your doctor or pharmacist. Depending on your specific circumstances, your doctor may want you to:
An interaction between two medications does not always mean that you must stop taking one of them. Speak to your doctor about how any drug interactions are being managed or should be managed.
Medications other than those listed above may interact with this medication. Tell your doctor or prescriber about all prescription, over-the-counter (non-prescription), and herbal medications you are taking. Also tell them about any supplements you take. Since caffeine, alcohol, the nicotine from cigarettes, or street drugs can affect the action of many medications, you should let your prescriber know if you use them.
The contents of this site are for informational purposes only. Always seek the advice of your physician or other qualified healthcare provider regarding any questions you may have about a medical condition.
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