busulfan

Busulfan is used to treat chronic myelogenous leukemia (CML). It does not cure the disease but helps to control it so that your quality of life is improved.

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 and resume your usual dosing schedule. Do not double the dose to catch up.

Take this medication by mouth with or without food, usually once daily or as directed by your doctor. Dosage is based on your weight, medical condition, laboratory test results, and response to treatment. Your treatment may be stopped for a short time if your blood counts are too low. Keep all medical and laboratory appointments. Do not increase your dose or take this medication more often than prescribed. Your condition will not improve any faster, and the risk of serious side effects may be increased. Since this drug can be absorbed through the skin and lungs, women who are pregnant or who may become pregnant should not handle this medication or breathe the dust from the tablets. Tell your doctor if your condition does not improve or if it worsens.

The effects of some drugs can change if you take other drugs or herbal products at the same time. This can increase your risk for serious side effects or may cause your medications not to work correctly. These drug interactions are possible, but do not always occur. Your doctor or pharmacist can often prevent or manage interactions by changing how you use your medications or by close monitoring. To help your doctor and pharmacist give you the best care, be sure to tell your doctor and pharmacist about all the products you use (including prescription drugs, nonprescription drugs, and herbal products) before starting treatment with this product. While using this product, do not start, stop, or change the dosage of any other medicines you are using without your doctor's approval. Some products that may interact with this drug include: acetaminophen, itraconazole, metronidazole, thioguanine. Also report the use of drugs which might increase seizure risk when combined with busulfan including bupropion, tramadol, phenothiazines (such as thioridazine), theophylline, or tricyclic antidepressants (such as amitriptyline), among others. Consult your doctor or pharmacist for details. This document does not contain all possible drug interactions. Keep a list of all the products you use. Share this list with your doctor and pharmacist to lessen your risk for serious medication problems.

Your condition can cause complications in a medical emergency. For information about enrolling in MedicAlert, call 1-800-854-1166 (US) or 1-800-668-1507 (Canada).

Do not share this medication with others. Laboratory and/or medical tests (such as complete blood count, hematocrit/hemoglobin, liver function) must be performed periodically to monitor your progress or check for side effects. Consult your doctor for more details.

If overdose is suspected, contact a poison control center or emergency room immediately. US residents can call the US National Poison Hotline at 1-800-222-1222. Canada residents can call a provincial poison control center. Symptoms of overdose include: easy bruising/bleeding, pale skin, unusual tiredness.

Before taking busulfan, 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: blood/bone marrow disorders (such as bone marrow suppression, neutropenia, thrombocytopenia, anemia), brain disorders (such as seizures, head injury). Busulfan can make you more likely to get infections or may worsen any current infections. Therefore, wash your hands well to prevent the spread of infection. Avoid contact with people who have infections that may spread to others (such as chickenpox, measles, flu). Consult your doctor if you have been exposed to an infection or for more details. 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). 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). In female children, this medication may prevent puberty. Contact the doctor for more information. This medication may make it harder for females to become pregnant or for males to father children. Discuss with your doctor for more details. Busulfan is not recommended for use during pregnancy. It may harm an unborn baby. Discuss the use of reliable forms of birth control with your doctor. If you become pregnant or think you may be pregnant, tell your doctor immediately. It is unknown if this drug passes into breast milk. Because of the possible risk to the infant, breast-feeding while using this drug is not recommended. Consult your doctor before breast-feeding.

Store at room temperature at 77 degrees F (25 degrees C) away from light and moisture. Brief storage between 59-86 degrees F (15-30 degrees C) is permitted. Do not store in the bathroom. Keep all medicines 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 for more details about how to safely discard your product.

See also Warning section. Darkening skin or dry mouth may occur. If any of these effects persist or worsen, tell your doctor or pharmacist promptly. Many people using this medication develop serious side effects. However, your doctor has prescribed this medication 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. Tell your doctor immediately if any of these unlikely but serious side effects occur: signs of liver disease (such as persistent nausea/vomiting, severe stomach/abdominal pain, yellowing skin/eyes, dark urine), missed menstrual periods, shrinking testicles, seizures, unusual/extreme tiredness, painful urination, toe/joint pain. Tell your doctor immediately if any of these rare but serious side effects occur: fainting, fast/pounding heartbeat, cloudy/blurred vision. Busulfan has rarely caused very serious (possibly fatal) lung disease. This may occur after months to years of using busulfan. Tell your doctor immediately if you develop symptoms of lung disease, including chest pain, shortness of breath, persistent cough. Busulfan may cause other cancers (such as acute leukemia, tumors). Consult your doctor for more details. Tell your doctor immediately if you notice any symptoms of cancer, including unusual lumps, sudden weight loss. A very serious allergic reaction to this drug is rare. However, seek immediate medical attention if you notice any symptoms of a serious allergic reaction, including: rash, itching/swelling (especially of the face/tongue/throat), severe dizziness, trouble breathing. 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. In Canada - Call your doctor for medical advice about side effects. You may report side effects to Health Canada at 1-866-234-2345.

This section contains uses of this drug that are not listed in the approved professional labeling for the drug but that may be prescribed by your health care professional. Use this drug for a condition that is listed in this section only if it has been so prescribed by your health care professional. This drug may also be used as a pretreatment for patients who are undergoing stem cell transplant.

This medication decreases bone marrow function, an effect that may lead to a low number of blood cells such as red cells, white cells, and platelets. This effect can cause anemia, decrease your body's ability to fight an infection, or cause you to bruise or bleed more easily. Tell your doctor immediately if you develop any of the following symptoms: signs of an infection (such as fever, chills, persistent sore throat), easy bruising/bleeding, pale skin, unusual tiredness. Your doctor will monitor you closely while you are taking this medication. Keep all medical and laboratory appointments.