Coagulation Factor IX
Factor IX (FIX) is a protein in blood plasma that is essential to the
blood clotting process. A genetic deficiency of Factor IX is treated by
replacing the missing factor. Lyophilized concentrations of each brand of
factor are either manufactured through recombinant technology or derived
from human plasma. Replacement therapy is administered intravenously for the
prevention and control of bleeding episodes in patients with Factor IX
deficiency, also known as Hemophilia B. Factor products are supplied in vial
sizes of varying iu (international units) which may change with each new lot
of product manufactured.