Heat treated intravenous immunoglobulin preparation.

Before HBsAg screening of plasma was instituted, the preventive effect of immunoglobulin preparations (ISG) against Hepatitis B was not clearly defined. Since HBsAg screening became a requirement, all ISG has shown Anti-HBs and it further became clear that such preparations are effective in preventing Hepatitis B.Recently, cases of Hepatitis NANB associated with administration of intravenous immunoglobulin (IVIG) were reported. Since there is no NANB screening test presently available and IVIG tends to be administered in a large volume, a virus inactivation treatment should be performed on IVIG.Now that heat treatment at 60°C for 10 hours, which had previously been considered to be impossible or unnecessary for immunoglobulin, has become possible, an intravenous immunoglobulin preparation which is more ideal in stability and safety is available.

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