WOODCLIFF LAKE, N.J., May 2, 2016 /PRNewswire/ — Eisai Inc. today announced that the U.S. Food and Drug Administration (FDA) has approved FYCOMPA® (perampanel) CIII Oral Suspension as adjunctive therapy for the treatment of partial-onset seizures (POS) with or without secondarily generalized seizures, and primary generalized tonic-clonic (PGTC) seizures in …