Behandlingen med Tysabri bør iværksættes og overvåges af en læge med erfaring i behandling af syg - domme i nervesystemet og med adgang til en særlig type scanner, som kaldes en MRI- scanner (mag - netic resonance imaging).
Treatment with Tysabri should be started and supervised by a doctor who is experienced in treating diseases of the nervous system, and who has access to a type of scanning machine called a magnetic resonance imaging (MRI) machine.