[Various characteristics of intravenous polyvalent immunoglobulins].

Polyvalent human immunoglobulins for intravenous use (GVP) are obtained by fractionating human plasma with ethanol, according to a method in which traces of pepsin at pH4 eliminate any anticomplementary activity. All the analytical tests have come within official requirements. Results of extended tests concerning specificity, potency, immunoglobulin subclass distribution, biological half-life and opsonic function are presented.