» Immune Globulin conforms to the regulations of the FDA concerning biologics (640.100 to 640.104) (see
Biologics 1041). It is a sterile, nonpyrogenic solution of globulins that contains many antibodies normally present in adult human blood, prepared by pooling approximately equal amounts of material (source blood, plasma, serum, or placentas) from not less than 1000 donors. It contains not less than 15 g and not more than 18 g of protein per 100 mL, not less than 90.0 percent of which is gamma globulin. It contains 0.3
M glycine as a stabilizing agent and contains a suitable preservative. It has a potency of component antibodies of diphtheria antitoxin based on the U.S. Standard Diphtheria Antitoxin and a diphtheria test toxin, tested in guinea pigs (not less than 2 antitoxin units per mL), and antibodies for measles and poliovirus. It meets the requirements of the tests for heat stability in absence of gelation on heating, and for pH.