Chan, Y P Methylphenidate hydrochloride given with or before breakfast: II. Effects on plasma concentration of methylphenidate and ritalinic acid. [electronic resource] - Pediatrics Jul 1983 - 56-9 p. digital Publication Type: Clinical Trial; Comparative Study; Controlled Clinical Trial; Journal Article ISSN: 0031-4005 Subjects--Topical Terms: AdolescentAttention Deficit Disorder with Hyperactivity--drug therapyBiological AvailabilityChildDouble-Blind MethodDrug Administration ScheduleFastingHalf-LifeHumansIntestinal AbsorptionKineticsMaleMethylphenidate--administration & dosageTime Factors