Adderall Dosing Recommendations

Initial Dosing

The American Academy of Child and Adolescent Psychiatry recommends starting with 5 mg of immediate-release (IR) formulation twice daily or 10 mg of extended-release (XR) formulation once daily in the morning, with gradual titration by 5 mg weekly increments based on clinical response and tolerability, up to a maximum daily dose of 40-50 mg 1, 2, 3
For immediate-release (IR) formulation, the starting dose is 2.5 mg (for children) or 5 mg (for adults) twice daily, typically given after breakfast and lunch 1, 4
For extended-release (XR) formulation, the starting dose is 10 mg once daily in the morning 2, 3
Morning administration is recommended to minimize sleep disturbances 2

The dosing schedule should be increased in weekly increments of 5-10 mg for IR or 5 mg for XR if symptom control is not achieved 1, 2, 5
Allow at least one week between dose increases to properly evaluate response 2
During initial titration, weekly contact can be maintained by telephone, with in-person visits at least monthly until symptoms are stabilized 1, 4

The maximum total daily dose is 40 mg for amphetamines according to the Physician's Desk Reference 1, 4
More recent guidelines suggest a maximum daily dose of 50 mg for adults 2, 3
For children weighing less than 25 kg, single doses should not exceed 10 mg 1, 3, 4

Baseline assessment should include blood pressure, pulse, height, and weight 1, 4
Follow-up assessment should include evaluation of target ADHD symptoms and side effects (insomnia, anorexia, headaches, social withdrawal, tics, weight loss) 1, 4
Adults should have blood pressure and pulse checked quarterly 1, 4
Weigh patients at each visit to monitor for appetite suppression 1, 4

Older adults may be more sensitive to both therapeutic and adverse effects due to age-related changes in pharmacokinetics 2
For older adults, consider a more conservative titration schedule (increasing by 5 mg every 2 weeks instead of weekly) 2

Starting at too high a dose, which can lead to unnecessary side effects and decreased medication adherence 2
Failing to systematically assess both benefits and side effects during titration 2
Not allowing sufficient time between dose increases to evaluate response 2
Overlooking the importance of morning administration to minimize sleep disturbances 2
Continuing to increase the dose beyond maximum recommendations when not effective - consider alternative medications instead 2, 3

If the maximum recommended dose does not help, more is not necessarily better 1, 4
Consider a change in medication or addition of environmental/psychosocial interventions 1, 4
Reevaluate the diagnosis and consider comorbid conditions that might be affecting treatment response 2

The American Academy of Child and Adolescent Psychiatry recommends avoiding prescribing Adderall XR to adults with active substance abuse disorder due to abuse potential 6