FDA approves Rebif Rebidose interferon beta-1a for MS Last post by aredmosquito « Tue Mar 26, 2013 7:17 pm. ... In MS treated with interferon beta.... Last post by MSUK « Thu Sep 27, 2012 11:14 pm. ... New Blood Test Predicts Who Will Benefit From Interferons Last post by scsi « Mon Feb 01, 2016 5:31 pm. ...