Read the Official PANTHERx Press Release. PANTHERx Rare announced today that it was selected by Mitsubishi Tanabe Pharma America, Inc. (MTPA) as the exclusive U.S. pharmacy distribution partner for EXSERVAN™ (riluzole). The drug, an oral film formulation of riluzole, was approved by the U.S. Food and Drug Administration (FDA) for the treatment of amyotrophic lateral sclerosis […]