- If patients plan to start treatment with Copaxone® or an interferon [Betaseron® (or Extavia®), Rebif®, Avonex®, PLEGRITY®], Ocrelizumab, Rituximabor an oral agent [Gilenya®, Aubagio® or Tecfidera®] and then they must be on for at least 3 months prior to month 0 (as above).