What is Tysabri?

Natalizumab is a humanized monoclonal antibody against the cell adhesion molecule α4-integrin. Natalizumab is used in the treatment of multiple sclerosis and Crohn's disease. It is co-marketed by Biogen Idec and Élan as Tysabri.

Questions and answers on "Tysabri"

I have had MS since 2000. I am now 42 and have just finished a week of iv steroid. My MS seems to be transitioning from RRMS to SPMS. Symptoms don...

doctor1 MD


Thank you for posting your query.

MS generally does not improve or stop progressing due to surgeries. So, any improvement is likely to be...

Read Full Thread   Ask a Doctor Now

hi I am an MS Patient, and have been using tysabri for 3 years. 2 weeks ago I catched genital herpes
will I be able to take my tysabri infusion...

doctor1 MD

Brief Answer:
You can take infusion

Detailed Answer:

I have gone through your question and understand your concerns.

Tysabri is associated...

Read Full Thread   Ask a Doctor Now

Recent questions on  Tysabri

doctor1 MD

rrms dx 2008 several TX and currently tysabri . doing well. however recovering from #left ankle, again good, but r/leg getting very fatigued more...

doctor1 MD

To Dr XXXXXXX Panwar, I have to tell you that the term paroxysmal pains or and attacks in multiple sclerosis was extremly very helpful, and is...

doctor1 MD

I have MS and have been on Tysabri for 4+ years...no outward side affects. I do, however, have an increased lymphocyte count of 5500. My total WBC...

doctor1 MD

I was dx with MS in 1985 the first medication I took was AVONEX since 1997 until 2011. I think I was beginning to feel sicker after taking it for...

Ask Question
Doctor Image

Hi, I am Dr. Andrew Rynne (Family Physician). I will be guiding you through the process. Please write your question below.

Related Drugs/Medications
Related Treatment/Therapy