Medications Medication Formulations Dosages and Increments Maximum Dosage/⁠Day Duration of Action
Methylphenidate Methylphenidate ER
10 and 20 mg tablets
Initial dose of 10mg,
increments of 10 mg/day
every 3-7 days
≤ 50 kg: 60 mg

> 50 kg: 100 mg *
Delayed onset with continuous release
over 3 to 8 hours
Methylphenidate ER
chewable tablets
20 and 30 mg (scored),
40 mg (not scored)
Initial dose of 20 mg,
increments of 10, 15,
or 20 mg/day every 7 days
60 mg Continuous release over 6 to 8 hours with duration of action up to 13 hours
Methylphenidate ER
18, 27, 36, 54 mg tablets
Initial dose of 20 mg, increments of 9 to 18 mg/dose every 3-7 days <13 years: 54 mg

≥13 years: 72 mg
20% immediate-release and 80% continuous-release over 10 to 12 hours by osmotic delivery
Methylphenidate patch**
10, 15, 20, 30 mg patch
Initial dose of 10mg**, increments of 5 mg/dose
every 3 to 7 days
30 mg Onset 2 hours after application of patch and continuous release over 9 to 12 hours
Methylphenidate LA (RITALIN)
10, 20, 30, 40 mg capsules
Initial dose of 10 or 20 mg,
increments of 10 or 20 mg/dose
every 3-7 days
≤ 50 kg: 60 mg

> 50 kg: 100 mg *
50% immediate-release and
50% delayed-release over 8-12 hours
Dexmethylphenidate Dexmethylphenidate XR
5, 10, 15, 20, 25, 30, 35, 40 mg capsules
Initial dose of 5 mg,
increments of 5 mg/dose
every 3-7 days
40 mg 50% immediate-release and
50% delayed-release
over 10-12 hours
Amphetamines Dextroamphetamine-amphetamine ER (Adderall XR)
5, 10, 15, 20, 25, 30 mg capsules
Initial dose of 5 mg,
increments of 5 mg/dose
every 3-7 days
≤ 50 kg: 40 mg

> 50 kg: 60 mg ***
Combination of immediate- and continuous-release over 10 to 12 hours
Dextroamphetamine SR ***
5, 10, 15 mg capsules
Initial dose of 5 mg,
increments of 5 mg/dose
every 3-7 days
≤ 50 kg: 40 mg

> 50 kg: 60 mg ***
Combination of immediate and
continuous-release over 8-12 hours