FDA Labels of Approved MS Drugs [Updated for Gilenya approval and fda.gov new file structure (which makes the old-style links invalid).] Interferon drugs Avonex: http://www.accessdata.fda.gov/drugsatfda_docs/label/2007/103628s5115lbl.pdf Betaseron: http://www.accessdata.fda.gov/drugsatfda_docs/label/2003/103471s5032lbl.pdf Extavia: http://www.accessdata.fda.gov/drugsatfda_docs/label/2009/125290s0000lbl.pdf Rebif: http://www.accessdata.fda.gov/drugsatfda_docs/label/2005/103780s5062lbl.pdf Non-interferon drugs Copaxone: http://www.accessdata.fda.gov/drugsatfda_docs/label/2001/20622s15lbl.pdf Gilenya: http://www.accessdata.fda.gov/drugsatfda_docs/label/2010/022527s000lbl.pdf Tysabri: http://www.accessdata.fda.gov/drugsatfda_docs/label/2008/125104s106lbl.pdf