Natalizumab, Infusion

na-ta-LIZ-oo-mab

What are other names for this medicine?

Type of medicine: antiviral; biological response modulator; monoclonal antibody

Generic and brand names: natalizumab, infusion; Tysabri

What is this medicine used for?

This medicine is given by IV infusion (slow drip through a needle into a vein) to reduce the frequency of attacks caused by multiple sclerosis (MS). This medicine is also given to treat moderate to severe Crohn’s disease. This medicine is usually given to people after other medicines have not worked.

This medicine can only be given by prescribers, infusion centers, and pharmacies who are registered with a special program. Before receiving this medicine, you may need to have an MRI scan of your brain. You must also be enrolled in the special prescribing program.

This medicine may be used to treat other conditions as determined by your healthcare provider.

What should my healthcare provider know before I take this medicine?

Before taking this medicine, tell your healthcare provider if you have ever had:

  • An allergic reaction to any medicine
  • A weakened immune system from diseases such as HIV/AIDS, leukemia, lymphoma, or from cancer chemotherapy, organ transplant medicine, radiation therapy, or steroid medicine.
  • Progressive multifocal leukoencephalopathy (PML)

Before taking this medicine, you should have an anti-JCV blood test. If the test is positive, you are at risk for progressive multifocal leukoencephalopathy (PML).

Females of childbearing age: Talk with your healthcare provider if you are pregnant or plan to become pregnant. It is not known whether this medicine will harm an unborn baby. Do not breast-feed while taking this medicine without your healthcare provider's approval.

How do I use it?

Read the Medication Guide given to you when you start taking this medicine and each time you receive an infusion.

This medicine is given by a healthcare provider. Keep all appointments for treatment.

What should I watch out for?

This medicine increases the risk of PML. You need to have exams and blood tests regularly to see how this medicine affects you. Keep all appointments for these tests.

You may get infections more easily when you are taking this medicine. Stay away from people with colds, flu, or other infections. Also, do not have any vaccines without getting your healthcare provider's approval first.

If you need emergency care, surgery, or dental work, tell the healthcare provider or dentist you have received this medicine.

What are the possible side effects?

Along with its needed effects, your medicine may cause some unwanted side effects. Some side effects may be very serious. Some side effects may go away as your body adjusts to the medicine. Tell your healthcare provider if you have any side effects that continue or get worse.

Life-threatening (Report these to your healthcare provider right away. If you cannot reach your healthcare provider right away, get emergency medical care or call 911 for help): Allergic reaction (hives; itching; rash; trouble breathing; tightness in your chest; swelling of your lips, tongue, and throat).

Serious (report these to your healthcare provider right away): Severe depression; thoughts of suicide; new or sudden change in your thinking, eyesight, balance, or strength; unexplained cough, sore throat, or sinus congestion; increased urination or painful urination; fever; yellowish skin or eyes; dark urine; light-colored bowel movements; loss of appetite; unusual tiredness; nausea; vomiting.

Other: Headache, stomach pain, diarrhea, menstrual problems, vaginal discharge, joint pain, tiredness, depression, dizziness.

What products might interact with this medicine?

When you take this medicine with other medicines, it can change the way this or any of the other medicines work. Nonprescription medicines, vitamins, natural remedies, and certain foods may also interact. Using these products together might cause harmful side effects. Talk to your healthcare provider if you are taking:

  • Corticosteroids such as betamethasone (Celestone), cortisone, dexamethasone, fludrocortisone (Florinef), hydrocortisone (Cortef), methylprednisolone (Medrol), prednisolone (Orapred), prednisone, and triamcinolone (Aristospan, Kenalog)
  • Immunosuppressants such as azathioprine (Imuran), basiliximab (Simulect), cyclosporine (Neoral, Gengraf, Sandimmune), methotrexate, mycophenolate (CellCept), sirolimus (Rapamune), and tacrolimus (Prograf)
  • Interferon beta-1a (Avonex, Rebif)
  • Medicines used to treat cancer such as cisplatin, doxorubicin (Adriamycin), hydroxyurea (Hydrea), mercaptopurine, vinblastine, and vincristine
  • Vaccines

If you are not sure if your medicines might interact, ask your pharmacist or healthcare provider. Keep a list of all your medicines with you. List all the prescription medicines, nonprescription medicines, supplements, natural remedies, and vitamins that you take. Be sure that you tell all healthcare providers who treat you about all the products you are taking.

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This advisory includes selected information only and may not include all side effects of this medicine or interactions with other medicines. Ask your healthcare provider or pharmacist for more information or if you have any questions.

Ask your pharmacist for the best way to dispose of outdated medicine or medicine you have not used. Do not throw medicines in the trash.

Keep all medicines out of the reach of children.

Do not share medicines with other people.

Developed by RelayHealth.
Published by RelayHealth.
Copyright ©2014 McKesson Corporation and/or one of its subsidiaries. All rights reserved.

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