WIXOM, Mich., May 7, 2008 (PRIME NEWSWIRE) -- Rockwell Medical Technologies, Inc. (Nasdaq:RMTI), a leading, innovative manufacturer and developer of renal drug therapies and essential dialysate products, reported record first quarter 2008 sales of $12.4 million, an increase of 31% over sales of $9.5 million in the first quarter of last year. Loss per share in the first quarter of 2008 was ($.09) compared to ($.14) in the first quarter of 2007.