MedicationHow suppliedUsual initial doseSingle-dose rangeDosage rangeDosage schedulePeak clinical effectOnset of behavioral effectDuration of behavioral effectContraindications, monitoring, precautions and adverse effects
Methylphenidate, immediate release
Generic, Ritalin, MethylinTablet: 5, 10 and 20 mg0.3 to 0.6 mg per kg per dose, or 2.5 to 5 mg0.3 to 0.8 mg per kg5 to 80 mg per dayTwo or three times daily: full dose given 30 minutes before breakfast and lunch; half-dose given at 3:00 to 4:00 p.m.Average: 1.9 hours; range: 0.3 to 4 hours20 to 60 minutes3 to 6 hoursContraindications: motor tics, glaucoma, history of seizures, hypertension, pregnancy
Recommended monitoring: height, weight, blood pressure, pulse
Precautions: avoid decongestants
Adverse effects: rebound or deterioration of behavior when medication wears off; emotional lability, irritability, tearfulness, social withdrawal, flattened affect, insomnia, poor appetite, stomach pain, weight loss, reduced growth velocity, headache
Methylphenidate, extended release
Ritalin-SRTablet: 20 mg20 mg0.6 to 2 mg per kg, or 20 to 40 mg20 to 80 mg per dayOnce or twice dailyAverage: 4.7 hours; range: 1.3 to 8.2 hours60 to 90 minutes5 to 8 hoursSame as above
Tablets should not be cut in half or crushed.
ConcertaTablet: 18 and 36 mg18 mg18 mg18 to 54 mg per dayOnce dailyNA1 to 2 hours12 hoursSame as above
Dextroamphetamine, immediate release
Generic, DexedrineCapsule: 5, 10 and 15 mg0.15 mg per kg, or 2.5 to 5 mg0.15 to 0.5 mg per kg5 to 40 mgTwo or three times daily1 to 2 hours20 to 60 minutes4 to 6 hoursSame as methylphenidateplus avoid concomitant use with monoamine oxidase inhibitors
DextroStatTablet: 5 and 10 mg
Dextroamphetamine, extended release
Dexedrine SpansulesCapsule: 5, 10 and 15 mg5 mg each morning0.3 to 0.8 mg per kg, or 5 to 20 mg5 to 40 mg per dayOnce or twice dailyNA60 to 90 minutes6 to 10 hoursSame as methylphenidate
Amphetamine-dextroamphetamine (Adderall)Tablet: 5, 10, 20 and 30 mg2.5 to 5 mg0.15 to 0.5 mg2.5 to 40 mg per dayOnce or twice daily1 to 2 hours30 to 60 minutes4 to 6 hoursSame as methylphenidate
Pemoline (Cylert)Tablet: 18.75, 37.5 and 75 mg
Chewable tablet: 37.5 mg
18.75 mg each morning0.5 to 2.5 mg per kg2 mg per kg, or 18.75 to 112.5 mg per dayOnce or twice dailyVariable
Steady state in 2 to 3 days
Titrate dosage every 3 to 4 weeks.
2 hours (variable)6 to 10 hoursInformed consent must be obtained before this drug is prescribed.
Required monitoring: alanine aminotransferase level at baseline and every 2 weeks; inquire about anorexia, malaise, gastrointestinal symptoms, dark urine.
Adverse effects: choreoathetoid movements, liver dysfunction, liver failure, plus same as methylphenidate