Hi, I just wanted to ask how often anyone on Gilenya have MRI’s. I was previously on Tysabri and I had them every four months. I changed to Gilenya in 2016 and I have been having them every four months as well. After my last visit to the clinic I received an MRI appointment for a years time. I queried this with the Ms nurse and she said only people on Tysabri have MRI’s every four months for safety reasons. I’m confused as the doctors I seen in clinic arranged them.