Generic name Brand name Dose (mg/pill) Maximum FDA-approved dosage (mg/d) Duration of behavioral effects (hrs)
Methyphenidate Ritalin 5, 10, 20 60 2-4
Methylphenidate SR Ritalin SR, Metadate ER 10, 20 60  
ER methylphenidate Ritalin LA 10, 20, 30, 40 60 8-10
  Concerta 18, 27, 36, 54 54 10-12
  Metadate CD 10, 20, 30 60 8-10
Dexmethyl-phenidate Focalin 2.5, 5, 10 20 3-6
Dextro-amphetamine Dexedrine, DextroStat 5, 10 45 4-5
Dextro-amphetamine SR Dexedrine
Spansules
5, 10, 15 45  
Amphetamine salts Adderall 5, 7.5, 10, 12.5, 15, 20, 30 45 5-7
ER amphetamine salts Adderall XR 5, 10, 15, 20, 25, 30 30 8-10
Pemoline Cylert 18.75, 37.5, 75 112.5 7-9

ER = extended release; FDA = U.S. Food and Drug Administration; SR = sustained release

Adapted from: Hirsch GS and Koplewicz HS. Attention-deficit hyperactivity disorder. In: Devinsky O and Westbrook LE, eds. Epilepsy and Developmental Disabilities. Boston: Butterworth-Heinemann; 2001;187-204.
With permission from Elsevier (www.elsevier.com).

Authored By: 
Glenn S. Hirsch MD
Harold S. Koplewicz MD
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Reviewed By: 
Glenn S. Hirsch MD
on: 
Tuesday, June 1, 2004