Question: is filgrastim the same as grastofil?
Answer: Grastofil® (filgrastim) is a biosimilar biologic drug that is a recombinant methionyl human granulocyte colony stimulating factor (r-metHuG-CSF) produced by recombinant DNA technology. Filgrastim is a 175 amino acid protein produced by Escherichia coli (E.