<unk>  is a antiviral that is FDA approved for the treatment of RECURRENT VIRAL INFECTIONS.   Common adverse reactions include black stools, chills, cough, fever, irritability.
Interferon alfa-2a
Interferon alfa-2b
Interferon Alfa-n3
Interferon type I
Pegylated interferon alfa-2a
Peginterferon Beta-1a
Pegylated interferon alfa-2b
Interferon beta-1a