Rebif 8, 8 mikrogram og Rebif 22 mikrogram findes som en opstartspakning, som er beregnet til brug i de første 4 ugers behandling, hvor en gradvis stigende dosis Rebif anbefales.
Rebif 8.8 micrograms and Rebif 22 micrograms are supplied in an initiation pack, that is intended for use during the initial 4 weeks of treatment, during which a gradual increase in Rebif dose is recommended.