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Important Instructions on Tysabri

Dosing Information

There is only one standard dose of this medication, regardless of your age or weight. As is always the case, do not adjust your dosage unless your healthcare provider specifically tells you to do so.
(Click Tysabri Dosage for more information.)

Side Effects of Tysabri

Just like any medicine, Tysabri can cause side effects. However, not everyone who receives the drug will experience problems. Most people tolerate it quite well.
If reactions do occur, in most cases, they are minor and either require no treatment or are treated easily by you or your healthcare provider. Serious side effects are less common.
Common side effects of Tysabri include but are not limited to:
(Click Tysabri Side Effects to learn more, including potentially serious side effects you should report immediately to your healthcare provider.)

Drug Interactions

Tysabri may react with a few other medicines (see Tysabri Drug Interactions).

Important Information for Your Healthcare Provider

Talk with your healthcare provider prior to receiving this medication if you have:
  • Liver disease, such as hepatitis, cirrhosis, or liver failure
  • A weakened immune system due to human immunodeficiency virus (HIV), acquired immunodeficiency syndrome (AIDS), leukemia, lymphoma, or any other cause
  • A fever or infection (including long-lasting infections, such as shingles)
  • A history of progressive multifocal leukoencephalopathy (PML), a rare infection of the brain
  • Had an organ transplant
  • Any allergies, including to foods, dyes, or preservatives.
Also, let your healthcare provider know if you are:
Make sure to tell your healthcare provider about all other medications you are taking, including prescription and nonprescription medicines, vitamins, and herbal supplements.
(Click Tysabri Warnings and Precautions to learn more, including information on who should not receive the drug.)
Know the Signs - Concussion Safety

Tysabri Medication Information

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