Lannett Announces Approval For Metaxalone Tablets USP, 800 Mg PR Newswire PHILADELPHIA, Nov. 28, 2016 PHILADELPHIA , Nov. 28, 2016 /PRNewswire/ -- Lannett Company, Inc. (NYSE: LCI) today announced that it received approval from the U.S. Food and Drug Administration (FDA) of its Abbreviated New Drug Application (ANDA) for Metaxalone Tablets USP, 800 mg, the therapeutic equivalent to the reference listed drug, Skelaxin ® of King Pharmaceuticals, Inc. According to IMS, total U.S. sales for the 12...