Busulfan-oral

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 right away if you have any serious side effects, including: signs of liver disease (such as persistent nausea/vomiting, severe stomach/abdominal pain, yellowing skin/eyes, dark urine), seizures, unusual/extreme tiredness, painful urination, toe/joint pain, 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 right away 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 right away if you notice any symptoms of cancer, including unusual lumps, sudden weight loss.

This medication may affect the ovaries, possibly reducing fertility and causing hormone changes (such as missed menstrual periods). Talk to your doctor for more details.

This medication can decrease sperm production and shrink the testicles, effects that may lower male fertility. Talk to your doctor for more details.

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.

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.