May 11 2010 Securities exchange Commission 450 Fifth Street NW Washington DC 20549 Attn. Document Control RE	American Depositary Shares evidenced by the American Depositary Receipts each representing One 1 Ordinary Share of Biovitrum. Form F6 File No. 333160270 Ladies and Gentlemen Pursuant to Rule 424b3 under the Securities Act of 1933 as amended on behalf of The Bank of New York as Depositary for securities against which American Depositary Receipts are to be issued we attach a copy of the new prospectus Prospectus reflecting the change in name and to Swedish Orphan Biovitum AB. As required by Rule 424e the upper right hand corner of the Prospectus cover page has a reference to Rule 424b3 and to the file number of the registration statement to which the Prospectus relates. Pursuant to Section III B of the General Instructions to the Form F6 Registration Statement the Prospectus consists of the ADR certificate with revised name for Biovitrum. The Prospectus has been revised to reflect the new name and has been overstampted with Effective May 12 2010 the Companys Name Changed to Swedish Orphan Biovitrum AB Please contact me with any questions or comments at 212 8152207 Jennifer D. Davis The Bank of New York Mellon ADR Division Encl. CC Paul Dudek Esq. Office of International Corporate Finance 101 Barclay Street, New York NY 10286