Produced from highly purified methionine-free recombinant human interferon produced by a recombinant strain of Escherichia coli by conjugation with 12 kD linear polyethyleneglycol. The total molecular weight is approx. 31.3 kD.
Frozen solution. 1 mL, 50 mL or 100 mL in plastic vials.
Peginterferon alfa-2b, sodium hydrophosphate, sodium dihydrophosphate dehydrate, polysorbate 80, water for injection.
At or below -40°C.