Adderall Dosage Reference Guide
ADHD Dosing Reference
Standard Adderall dosing ranges for ADHD by age group and formulation
mg
IR to XR Conversion
Estimate equivalent Adderall XR dose from current IR dosing
mg/day
Formula
IR Starting: 5 mg/day (children), 5-10 mg/day (adults) | XR Starting: 10 mg/day (children), 20 mg/day (adults) | Titrate by 5-10 mg weekly | IR to XR: Total daily IR dose = equivalent once-daily XR dose
Frequently Asked Questions
What is the typical starting dose of Adderall for ADHD?
For children ages 6-12, the typical starting dose is 5 mg IR once or twice daily, or 10 mg XR once daily. For adults, starting doses are typically 5 mg IR twice daily or 20 mg XR once daily. Doses are then titrated upward as needed under medical supervision.
What is the difference between Adderall IR and Adderall XR?
Adderall IR (Immediate Release) works for about 4-6 hours and is typically taken 1-3 times daily. Adderall XR (Extended Release) lasts about 10-12 hours and is taken once daily in the morning. XR contains both immediate and delayed-release beads.
What are the maximum recommended doses?
For ADHD: Children (6-12) max 30 mg/day, adolescents max 30-40 mg/day, adults max 40 mg/day (IR) or 60 mg/day (XR). These are general guidelines — individual dosing should be determined by a healthcare provider based on response and tolerability.
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