I am new to Neuro Talk. Thanks for letting us all come over. I just started tysabri in December, and was wondering if anyone here is on it. what have your experiences been like with ty? I had a bit of an allergic reaction during my 2nd infusion (Jan. 6) and had to have benadryl put in iv. Now I will premed with benadryl prior to next infusion on Feb 9th.