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Adderall Dosage Calculator

Find recommended starting Adderall dose and tablet count by age, indication, and tablet strength.

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Adderall Starting Dose Guide

Adderall dosing depends on age, indication, and tablet strength. This calculator shows a typical starting dose and tablet count. It does not replace medical advice. For pet dosing tools, see Cat Benadryl Dosage.

Tablet Count Formula

$$\text{tablets} = \frac{\text{starting dose (mg)}}{\text{tablet strength (mg)}}$$

Frequently Asked Questions

What is the usual adult ADHD starting dose?

Immediate-release tablets often start at 5 mg once or twice daily and titrate weekly.

What is the maximum Adderall dose for adults?

Common maximums are 40 mg daily for ADHD and 60 mg daily for narcolepsy, per prescribing guidance.

How is Adderall XR different?

XR is taken once daily. Starting doses are often higher in adults than in children.

Can children under 6 take Adderall?

Tablet ADHD dosing may start at age 3 to 5 with 2.5 mg, but only under clinician supervision.

Why match tablet strength to dose?

Using the closest tablet strength reduces splitting errors and supports consistent dosing.