Adderall dosing varies by age, condition, and individual factors. Learn what’s considered a safe daily maximum and how doctors adjust doses over time. The meaning of MAXIMUM DOSE is the largest dose of a medicine or drug consistent with safety. The FDA sets the maximum for Adderall (IR or XR) at a dose of 40 mg/day for adult ADHD. However, they allow up to 60 mg/day for more severe cases of ADHD, as well as for narcolepsy. How is maximum daily dose different from a loading dose? Maximum daily dose is the top amount you should not pass in one day, while a loading dose is a larger starting dose used to reach the drug's effect faster. Free local anesthetic dose calculator for dentists and dental students. Calculate maximum doses of lidocaine, articaine, mepivacaine, bupivacaine, and prilocaine by patient weight. Supports pediatric dosing, multi-drug combinations, and contraindication checks. Detailed Prednisone dosage information for adults and children. Includes dosages for Osteoarthritis, Asthma - Maintenance, Rheumatoid Arthritis and more; plus renal, liver and dialysis adjustments. Detailed Modafinil dosage information for adults. Includes dosages for Narcolepsy, Obstructive Sleep Apnea/Hypopnea Syndrome and Shift Work Sleep Disorder; plus renal, liver and dialysis adjustments. The recommended maximum dose of clavulanate component is 6.4 mg/kg/day. Different formulations are needed based on patient weight to keep within this recommended range. The current FDA-approved maximum daily dose for Adderall is 40 mg for both immediate-release (IR) and extended-release (XR) formulations, though more recent clinical guidelines from the American Academy of Child and Adolescent Psychiatry suggest a maximum of 50 mg daily for both formulations. 1, 2 It also means that the maximum dose—the dose above which there is a risk of unacceptable or toxic side effects, even if the medication has been tolerated up to that dose—will vary from person to person.