Fludarabine injection is used to treat chronic lymphocytic leukemia (CLL; a type of cancer of the white blood cells) in adults who have already been treated with at least one other medication and have not gotten better. Fludarabine injection is in a class of medications called purine analogs. It works by slowing or stopping the growth of cancer cells in your body.
Fludarabine injection comes as a powder to be added to fluid and injected over 30 minutes intravenously (into a vein) by a doctor or nurse in a medical office or hospital outpatient clinic. It is usually injected once a day for 5 days in a row. This treatment period is called a cycle, and the cycle may be repeated every 28 days for several cycles.
Your doctor may need to delay your treatment or adjust your dose if you experience certain side effects. Be sure to tell your doctor how you are feeling during your treatment with fludarabine.