Complex sentence: "Dexmethylphenidate" (Focalin, Novartis) otherwise known as "d"-TMP is a psychostimulant DRI that affects the CNS.
Split into simpler sentences: Dexmethylphenidate (Focalin, Novartis) otherwise known as "d"-TMP. It is a psychostimulant DRI that affects the CNS.