Adderall in Higher Doses May Raise Psychosis Risk, Study Says
The researchers defined a high dose as more than 40 milligrams of Adderall, 100 milligrams of Vyvanse or 30 milligrams of dextroamphetamine. The medium dosage (20 to 40 milligrams of Adderall, 50 to 100 milligrams of Vyvanse or 16 to 30 milligrams of dextroamphetamine) was associated with a 3.5 times higher risk of psychosis or mania.