Nausea, vomiting, loss of appetite, mouth sores, diarrhea, or constipation may occur. If any of these effects persist or worsen, tell your doctor or pharmacist promptly.
Many people using this medication have serious side effects. However, your doctor has prescribed this drug 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.
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.
Tell your doctor immediately if any of these unlikely but serious side effects occur: skin problems (such as ulcers, darkened/blackened/reddened skin, unusual growths/moles).
Tell your doctor immediately if any of these rare but serious side effects occur: mental/mood changes (such as confusion, hallucinations), seizures, shortness of breath, chest pain, persistent nausea/vomiting, severe stomach/abdominal pain, dark urine, yellowing skin/eyes, numbness/tingling of arms/legs, change in the amount of urine.
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.