He then received up to 10 mg methylphenidate (Ritalin®) and 20 mg Prevalence of adult ADHD in the United States is estimated at around.
Adults: Average dosage is 20 to 30 mg daily. Administer orally in divided doses 2 or 3 times daily, preferably 30 to 45 minutes before meals.
Adults—20 to 30 milligrams (mg) given in divided doses 2 or 3 times a day, taken Patients who have not been treated with methylphenidate.
Increase dosage gradually, in increments of 5 to 10 mg weekly. Daily dosage above 60 mg is not recommended. Adults. Average dosage is 20.