Original sentence: Stereoisomersic Dexmethylphenidate (sold commercially by Novartis as Focalin, also available generically in the US exclusively from Teva) is a pharmaceutical drug used to treat ADHD
Edited sentence: Stereoisomeric Dexmethylphenidate (sold commercially by Novartis as Focalin, also available generically in the US exclusively from Teva) is a pharmaceutical drug used to treat ADHD