» Pertussis Immune Globulin conforms to the regulations of the FDA concerning biologics (see Biologics 〈1041〉). It is a sterile, nonpyrogenic solution of globulins derived from the blood plasma of adult human donors who have been immunized with pertussis vaccine such that each 1.25 mL contains not less than the amount of immune globulin to be equivalent to 25 mL of human hyperimmune serum. It may contain 0.3 M glycine as a stabilizing agent, and it contains a suitable preservative.