Drug Interaction Report

Treatment with ibritumomab tiuxetan and epoetin beta-methoxy polyethylene glycol at the same time or too close together may interfere with the effects of epoetin beta-methoxy polyethylene glycol. Unless otherwise directed by your doctor, it is generally recommended that growth factors like epoetin beta-methoxy polyethylene glycol not be given within 3 weeks before or 2 weeks after treatment with ibritumomab tiuxetan. Talk to your doctor if you have any questions or concerns. It is important to tell your doctor about all other medications you use, including vitamins and herbs. Do not stop using any medications without first talking to your doctor.