Patent ID: 6875848

Claim:
A method for producing virus inactivated human gammaglobulin G, which method comprises: (a) suspending a precipitate of human gammaglobulin G in an aqueous solution containing a carbohydrate; (b) reducing the content of contaminants in the suspension with PEG; (c) applying the suspension to an anionic exchange resin in column to obtain an effluent; (d) subjecting the effluent to ultrafiltration so that the content of PEG in said effluent is reduced; (e) viral inactivation of the filtered effluent by at least one method selected from the group consisting of (i) Pasteurizing and (ii) treating with solvent/detergent; and (f) precipitating and washing the virus inactivated human gammaglobulin G from the viral inactivated effluent.