Hvis det besluttes at standse behandlingen med natalizumab, bør lægen erindre, at natalizumab forbliver i blodet og har farmakodynamiske virkninger (f. eks. forhøjet lymfocyttal) i cirka 12 uger efter den sidste dosisindgift.
If a decision is made to stop treatment with natalizumab, the physician needs to be aware that natalizumab remains in the blood, and has pharmacodynamic effects (e. g increased lymphocyte counts) for approximately 12 weeks following the last dose.