Adderall Dosage Guide for ADHD and Narcolepsy
Written by The Recovery Village
& Medically Reviewed by Dr. Kevin Wandler, MD
Medically Reviewed
Last updated: 03/08/2025
At The Recovery Village Cherry Hill at Cooper, we recognize that Adderall can be an effective medication for certain conditions. However, it is crucial to understand how it should be taken, what dosages are typically prescribed, and how to avoid potential dangers.
Key Points to Keep in Mind
- Adderall immediate-release typically begins to take effect within 15–30 minutes, and its impact can last between 4–6 hours.
- Adderall extended-release typically starts working within 30–60 minutes, with effects that can persist for 10–12 hours.
- Adult Adderall immediate-release doses typically range from 5 mg up to a total of 40 mg per day, split into multiple doses.
- Extended-release Adderall is taken once daily, usually not exceeding 40 mg per day.
- Misusing high doses of Adderall to achieve a “high” is extremely dangerous and may even be fatal.
Immediate-Release (IR) vs. Extended-Release (XR)
When discussing Adderall dosing, it is essential to distinguish between its two main forms: immediate-release (IR) and extended-release (XR). Each form has unique dosage guidelines:
- Adderall IR is generally offered at 5 mg, 7.5 mg, 10 mg, 12.5 mg, 15 mg, 20 mg, and 30 mg. This variety lets healthcare providers start patients at a modest dose and increase it gradually if needed.
- Adderall XR usually starts at 5 mg and increases in increments of 10 mg, 15 mg, 20 mg, 25 mg, and 30 mg. Since XR is designed to provide a longer-lasting effect, it is often taken once each day.
Recommended Dosages for Adults
In adult patients, a doctor often begins with the smallest potentially effective dose and raises it slowly:
- For ADHD (IR): A typical daily dose can range from 5 mg to 40 mg, divided into multiple doses throughout the day. Doses exceeding 40 mg rarely enhance benefits and might heighten unwanted side effects.
- For Narcolepsy (IR): A healthcare provider might start with 5 mg per day and gradually increase to as much as 60 mg per day, administered every four to six hours.
- For ADHD (XR): One dose is taken daily rather than being split up, and it usually does not exceed 40 mg per day.
Duration of Effects
- Immediate-release (IR): Often begins working 15–30 minutes after consumption, with effects that last roughly 4–6 hours.
- Extended-release (XR): Typically starts to take effect in about 30–60 minutes, providing relief for roughly 10–12 hours.
While both versions can result in a “crash” as they wear off, the extended-release form usually has less pronounced side effects upon comedown.
Dangers of High Doses and Adderall Misuse
Some individuals try to misuse Adderall by taking higher doses than prescribed, snorting it, or even injecting it. These methods pose severe health risks and can potentially lead to fatal outcomes. The amount of Adderall that might induce a euphoric “high” varies greatly by individual, making it impossible to predict a universally “safe” high dose.
Because Adderall misuse can lead to overdose, sudden death, or other grave health complications, it is vital to use this medication only under a doctor’s guidance. If you or a loved one is prescribed Adderall, it should be taken precisely as directed to minimize risks.
We Are Here To Help
If you or someone you care about is misusing Adderall or experiencing dependence, The Recovery Village Cherry Hill at Cooper is committed to helping you find a path toward healing. Our team can provide comprehensive treatment plans that address both the physical and psychological factors involved in substance use. We invite you to reach out and learn more about the support options available to you.
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