Interferon alfa-2b (recombinant) April 12, 2017 Interferon alfa-2b (recombinant) Trade Name Intron A Orphan Indication Acute hepatitis B USA Market Approval USA USA Designation Date 1988-11-17 00:00:00 Sponsor Schering Corporation;2000 Galloping Hill Road;Kenilworth, New Jersey, 07033