Quizartinib - oral
Quizartinib - oral
Quizartinib may cause a condition that affects the heart rhythm (QT prolongation). QT prolongation can rarely cause serious (rarely fatal) fast/irregular heartbeat and other symptoms (such as severe dizziness, fainting) that need medical attention right away.
The risk of QT prolongation may be increased if you have certain medical conditions or are taking other drugs that may cause QT prolongation. Do not use quizartinib if you have certain heart problems (long QT syndrome, fast/irregular heartbeat). Before using quizartinib, tell your doctor or pharmacist of all the drugs you take and if you have certain heart problems (heart failure, slow heartbeat, QT prolongation in the EKG), or family history of certain heart problems (QT prolongation in the EKG, sudden cardiac death).
Low levels of potassium or magnesium in the blood may also increase your risk of QT prolongation. This risk may increase if you use certain drugs (such as diuretics/"water pills") or if you have conditions such as severe sweating, diarrhea, or vomiting. Do not use quizartinib if you have low levels of potassium or magnesium in the blood.
To lower your risk, your doctor will order certain blood tests (potassium/magnesium levels) and a heart test (EKG) before and during treatment with quizartinib. Get medical help right away if you have fast/irregular heartbeat, severe dizziness, or fainting.
To receive this medication in the United States, you must understand, agree to, and carefully follow the requirements of the VANFLYTA REMS Program. If you live in Canada or any other country, consult your doctor and pharmacist for your country's regulations.
Quizartinib is used to treat acute myeloid leukemia (AML). It works by slowing or stopping the growth of cancer cells.
Read the Medication Guide and Warning Card provided by your pharmacist before you start taking quizartinib and each time you get a refill. Carry the Warning Card with you at all times. If you have any questions, ask your doctor or pharmacist.
Take this medication by mouth with or without food as directed by your doctor, usually once daily. Swallow the tablets whole. Do not crush, chew, or split the tablets.
The dosage is based on your medical condition, response to treatment, lab tests, and other medications you may be taking. Be sure to tell your doctor and pharmacist about all the products you use (including prescription drugs, nonprescription drugs, and herbal products).
Do not increase your dose or take 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.
If you vomit after taking a dose, do not take another dose. Take your next dose at the regular time. Do not double the dose to catch up.
Use this medication regularly to get the most benefit from it. To help you remember, take it at the same time each day.
See also Warning section.
Nausea, vomiting, diarrhea, abdominal pain, mouth sores, decreased appetite, headache, or trouble sleeping may occur. If any of these effects last or get worse, tell your doctor or pharmacist promptly.
Remember that this medication has been prescribed because your doctor has judged that the benefit to you is greater than the risk of side effects. Many people using this medication do not have serious side effects.
Tell your doctor right away if you have any serious side effects, including:
This medication may lower your ability to fight infections. This may make you more likely to get a serious (rarely fatal) infection or make any infection you have worse. Tell your doctor right away if you have any signs of infection (such as sore throat that doesn't go away, fever, chills, cough).
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:
This is not a complete list of possible side effects. If you notice other effects not listed above, contact your doctor or pharmacist.
In the US -
Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088 or at www.fda.gov/medwatch.
In Canada - Call your doctor for medical advice about side effects. You may report side effects to Health Canada at 1-866-234-2345.
See also Warning section.
Before taking quizartinib, 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.
Quizartinib can make you more likely to get infections or may make current infections worse. Stay away from anyone who has an infection that may easily spread (such as chickenpox, COVID-19, measles, flu). Talk to your doctor if you have been exposed to an infection or for more details.
Tell your health care professional that you are using quizartinib before having any immunizations/vaccinations. Avoid contact with people who have recently received live vaccines (such as flu vaccine inhaled through the nose).
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.
Before having surgery, tell your doctor or dentist about all the products you use (including prescription drugs, nonprescription drugs, and herbal products).
Older adults may be more sensitive to the side effects of this drug, especially QT prolongation. See also Warning section.
Tell your doctor if you are pregnant or plan to become pregnant. You should not become pregnant while using quizartinib. Quizartinib may harm an unborn baby. Women using this medication should ask about reliable forms of birth control during treatment and for 7 months after the last dose. Men using this medication should ask about reliable forms of birth control during treatment and for 4 months after the last dose. If you or your partner becomes pregnant, talk to your doctor right away about the risks and benefits of this medication.
It is unknown if this drug passes into breast milk. Because of the possible risk to the infant, breast-feeding is not recommended while using this medication and for 1 month after stopping this medication. Consult your doctor before breast-feeding.
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.
Other medications can affect the removal of quizartinib from your body, which may affect how quizartinib works. Examples include apalutamide, bosentan, enzalutamide, levoketoconazole, lumacaftor, mitotane, nafcillin, rifamycins (such as rifampin, rifapentine), St. John's wort, drugs used to treat seizures (such as carbamazepine, phenytoin), among others.
If someone has overdosed and has serious symptoms such as passing out or trouble breathing, call 911. Otherwise, call a poison control center right away. US residents can call their local poison control center at 1-800-222-1222. Canada residents can call a provincial poison control center.
Do not share this medication with others.
Lab and/or medical tests (such as kidney/liver function, blood mineral levels, EKG) should be done before you start taking this medication and while you are taking it. Keep all medical and lab appointments. Consult your doctor for more details.
If you miss a dose, take it as soon as you remember. If it is near the time of the next dose, skip the missed dose. Take your next dose at the regular time. Do not double the dose to catch up.
Store at room temperature away from light and moisture. Do not store in the bathroom. Keep all medications away from children and pets.
Do not flush medications down the toilet or pour them into a drain unless instructed to do so. Properly discard this product when it is expired or no longer needed. Consult your pharmacist or local waste disposal company.
HOW TO USE THIS INFORMATION: This is a summary and does NOT have all possible information about this product. This information does not assure that this product is safe, effective, or appropriate for you. This information is not individual medical advice and does not substitute for the advice of your health care professional. Always ask your health care professional for complete information about this product and your specific health needs.
Information last revised August 2023.
Copyright(c) 2023 First Databank, Inc.
Selected from NATIONAL DRUG DATA FILE (NDDF) data included with permission and copyrighted by First Databank, Inc., 2019. This copyrighted material has been downloaded from a licensed data provider.
The above information is intended to supplement, not substitute for, the expertise and judgment of your health care professional. You should consult your health care professional before taking any drug, changing your diet, or commencing or discontinuing any course of treatment.