USES: This medication is combined with certain radioactive substances (Indium-111, Yttrium-90) and used along with rituximab to treat a certain type of cancer (B-cell non-Hodgkin's lymphoma) in patients whose cancer has returned or has not responded to other treatments. Ibritumomab tiuxetan and rituximab are known as monoclonal antibodies. They work by killing certain blood and cancer cells from your immune system (B cells). Yttrium-90 helps kill the cancer cells, and Indium-111 helps to show how the medication is spread throughout the body (imaging studies).
HOW TO USE: This medication is given by injection into a vein by a health care professional.Dosage is based on your medical condition, weight, and response to treatment. This medication is usually given as 2 doses. It is always given within 4 hours after rituximab. The first dose of this medication is combined with Indium-111. A test is done usually 48 to 72 hours after your dose to determine how the medication has spread throughout the body. If the test shows that the medication has spread properly, another dose of this medication (combined with Yttrium-90) is given 7 to 9 days after the first dose.
SIDE EFFECTS: See also Warning section.Nausea, vomiting, diarrhea, abdominal/stomach pain, cough, dizziness, headache, flushing, or loss of appetite may occur. If any of these effects persist or worsen, tell your doctor or pharmacist promptly.People using this medication may 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.Tell your doctor right away if you have any serious side effects, including: pain/swelling at injection site, swelling ankles/feet, mental/mood changes (e.g., anxiety), black stools, vomit that looks like coffee grounds, vaginal bleeding.Get medical help right away if any of these rare but very serious side effects occur: weakness on one side of the body, vision problems, confusion, slurred speech.This medication is made from human blood. Even though donors are carefully screened and this medication goes through a special manufacturing process, there is a very small chance that you may get infections from the medication (e.g., viruses). Tell the doctor immediately if you develop any signs of infection, including fever or persistent sore throat.This medication has infrequently caused other types of cancer (including myelodysplastic syndrome-MDS, acute myelogenous leukemia-AML). This condition can lead to very serious blood disorders. See also Warning section for symptoms.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.In Canada - Call your doctor for medical advice about side effects. You may report side effects to Health Canada at 1-866-234-2345.
Report Problems to the Food and Drug Administration
You are encouraged to report negative side effects of prescription drugs to the FDA. Visit the FDA MedWatch website or call 1-800-FDA-1088.
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