Thank you everyone for your responses. I know that this response to tysabri may be transient. I just was feeling overwhelmed after getting the phone call from my neuro. I know that there are other meds out there that I can possibly try if I continue to present with antibodies.

My next infusion is on Wednesday. I am going to have a benadryl iv one half hour prior to the infusion and they are also going to slow it down.