Ritalin metadatem. COMMON BRAND NAME(S): Metadate CD, Ritalin LA . Pronunciation: METH il FEN i date Brand: Concerta Metadate CD Metadate ER Methylin Methylin ER Ritalin Ritalin LA Ritalin-SR What is the most iAs with all extended release medications, Concerta should be swallowed whole and cannot be crushed. Concerta is normally taken once per day and is generally effective . " . . . Methylphenidate (MPH; Ritalin, Concerta, Metadate, or Methylin) is a psychostimulant drug approved for treatmen... more