This information from Lexicomp® explains what you need to know about this medication, including what it’s used for, how to take it, its side effects, and when to call your healthcare provider.
- This drug may cause a prolonged QT interval (a type of heartbeat that is not normal). If this happens, the chance of other unsafe and sometimes deadly abnormal heartbeats may be raised. Sudden deaths have happened in people taking this drug. Do not take this drug if you have low potassium or magnesium levels or a history of long QT on ECG. Your heartbeat will be watched often with an ECG. Talk with your doctor.
- Do not take this drug if you are taking certain other drugs, including any drugs that can raise the chance of a prolonged QT interval (a type of heartbeat that is not normal). There are many drugs that interact with this drug. Talk with your doctor and pharmacist to make sure it is safe to take this drug with all of your drugs.
- Take this drug on an empty stomach. Take at least 1 hour before or 2 hours after eating.
- It is used to treat a type of leukemia.
- It may be given to you for other reasons. Talk with the doctor.
- If you are allergic to this drug; any part of this drug; or any other drugs, foods, or substances. Tell your doctor about the allergy and what signs you had.
- If you cannot have galactose or you have lactase deficiency, lactose intolerance, or glucose-galactose malabsorption.
- If you are breast-feeding. Do not breast-feed while you take this drug and for 2 weeks after your last dose.
This is not a list of all drugs or health problems that interact with this drug.
Tell your doctor and pharmacist about all of your drugs (prescription or OTC, natural products, vitamins) and health problems. You must check to make sure that it is safe for you to take this drug with all of your drugs and health problems. Do not start, stop, or change the dose of any drug without checking with your doctor.
For all patients taking this drug:
- Tell all of your health care providers that you take this drug. This includes your doctors, nurses, pharmacists, and dentists.
- Have blood work checked as you have been told by the doctor. Talk with the doctor.
- You may have more chance of getting an infection. Wash hands often. Stay away from people with infections, colds, or flu.
- You may bleed more easily. Be careful and avoid injury. Use a soft toothbrush and an electric razor. Rarely, some bleeding problems have been deadly.
- If you have upset stomach, throwing up, diarrhea, or are not hungry, talk with your doctor. There may be ways to lower these side effects.
- People with a certain type of leukemia taking this drug may have lower blood flow to the heart, brain, or leg. Call your doctor right away if you have chest pain, numbness or weakness, trouble walking or speaking, leg pain, leg feels cold, or change in skin color of the leg.
- Patients with cancer who take this drug may be at a greater risk of getting a severe health problem called tumor lysis syndrome (TLS). This may lead to death. Call your doctor right away if you have a fast or abnormal heartbeat; any passing out; trouble passing urine; muscle weakness or cramps; upset stomach, throwing up, diarrhea, or not able to eat; or feel sluggish.
- Liver problems have happened. Call your doctor right away if you get signs of liver problems like dark urine, feeling tired, not hungry, upset stomach or stomach pain, light-colored stools, throwing up, or yellow skin or eyes.
- Talk with your doctor before getting any vaccines. Use of some vaccines with this drug may either raise the chance of an infection or make the vaccine not work as well.
- Avoid grapefruit and grapefruit juice.
- If you are in remission and your doctor tells you to stop taking this drug, you may have more muscle and bone signs than before you stopped treatment. These signs include arm, leg, bone, spine, muscle, or joint pain. If you have questions, talk with your doctor.
- This drug may cause harm to an unborn baby. A pregnancy test will be done before you start this drug to show that you are NOT pregnant.
- If you may become pregnant, you must use birth control while taking this drug and for some time after the last dose. Ask your doctor how long to use birth control. If you get pregnant, call your doctor right away.
- This drug may affect growth in children and teens in some cases. They may need regular growth checks. Talk with the doctor.
- As your child grows, your child’s doctor may change your child’s dose. Give this drug as your child’s doctor has told you.
WARNING/CAUTION: Even though it may be rare, some people may have very bad and sometimes deadly side effects when taking a drug. Tell your doctor or get medical help right away if you have any of the following signs or symptoms that may be related to a very bad side effect:
- Signs of an allergic reaction, like rash; hives; itching; red, swollen, blistered, or peeling skin with or without fever; wheezing; tightness in the chest or throat; trouble breathing, swallowing, or talking; unusual hoarseness; or swelling of the mouth, face, lips, tongue, or throat.
- Signs of infection like fever, chills, very bad sore throat, ear or sinus pain, cough, more sputum or change in color of sputum, pain with passing urine, mouth sores, or wound that will not heal.
- Signs of bleeding like throwing up or coughing up blood; vomit that looks like coffee grounds; blood in the urine; black, red, or tarry stools; bleeding from the gums; abnormal vaginal bleeding; bruises without a cause or that get bigger; or bleeding you cannot stop.
- Signs of a pancreas problem (pancreatitis) like very bad stomach pain, very bad back pain, or very bad upset stomach or throwing up.
- Signs of electrolyte problems like mood changes, confusion, muscle pain or weakness, a heartbeat that does not feel normal, seizures, not hungry, or very bad upset stomach or throwing up.
- Signs of high blood pressure like very bad headache or dizziness, passing out, or change in eyesight.
- Signs of high blood sugar like confusion, feeling sleepy, more thirst, more hungry, passing urine more often, flushing, fast breathing, or breath that smells like fruit.
- Chest pain or pressure, a fast heartbeat, or an abnormal heartbeat.
- Dizziness or passing out.
- This drug may cause you to swell or keep fluid in your body. Tell your doctor if you have swelling, weight gain, or trouble breathing.
All drugs may cause side effects. However, many people have no side effects or only have minor side effects. Call your doctor or get medical help if any of these side effects or any other side effects bother you or do not go away:
- Constipation, diarrhea, stomach pain, upset stomach, throwing up, or feeling less hungry.
- Hair loss.
- Back, muscle, or joint pain.
- Trouble sleeping.
- Signs of a common cold.
- Nose or throat irritation.
- Feeling tired or weak.
- Night sweats.
- Dry skin.
- Muscle spasm.
These are not all of the side effects that may occur. If you have questions about side effects, call your doctor. Call your doctor for medical advice about side effects.
You may report side effects to your national health agency.
Use this drug as ordered by your doctor. Read all information given to you. Follow all instructions closely.
- Take this drug on an empty stomach. Take at least 1 hour before or 2 hours after eating.
- Take with a full glass of water.
- Swallow whole. Do not chew, break, or crush.
- Capsule may be opened and contents sprinkled on 1 teaspoon of applesauce. Swallow within 15 minutes after mixing. Do not store for future use.
- Keep taking this drug as you have been told by your doctor or other health care provider, even if you feel well.
- Do not take cimetidine, famotidine, nizatidine, or ranitidine at the same time as this drug. Take this drug at least 2 hours before or 10 hours after taking these drugs.
- Do not take antacids within 2 hours before or 2 hours after taking this drug.
- Skip the missed dose and go back to your normal time.
- Do not take 2 doses at the same time or extra doses.
- Store at room temperature in a dry place. Do not store in a bathroom.
- Keep all drugs in a safe place. Keep all drugs out of the reach of children and pets.
- Throw away unused or expired drugs. Do not flush down a toilet or pour down a drain unless you are told to do so. Check with your pharmacist if you have questions about the best way to throw out drugs. There may be drug take-back programs in your area.
- If your symptoms or health problems do not get better or if they become worse, call your doctor.
- Do not share your drugs with others and do not take anyone else’s drugs.
- Some drugs may have another patient information leaflet. If you have any questions about this drug, please talk with your doctor, nurse, pharmacist, or other health care provider.
- This drug comes with an extra patient fact sheet called a Medication Guide. Read it with care. Read it again each time this drug is refilled. If you have any questions about this drug, please talk with the doctor, pharmacist, or other health care provider.
- If you think there has been an overdose, call your poison control center or get medical care right away. Be ready to tell or show what was taken, how much, and when it happened.
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