Adderall increases alertness, attention, and energy by increasing the activity of dopamine, serotonin, and norepinephrine in the brain.2 The standard daily dose of Adderall is 2.5 to 60 mg daily. It is available in 5 mg, 7.5 mg, 10 mg, 12.5 mg, 15 mg, 20 mg, and 30 mg strengths. It’s also available in an extended-release (XR) 5 mg, 10 mg, 15 mg, 20 mg, 25 mg, and 30 mg strengths.3

Like most medications, Adderall can cause side effects even when it’s taken in a low dose and only as prescribed. Common side effects of Adderall may include:4

• Loss of appetite
• Dry mouth
• Weight loss
• Diarrhea
• Stomachache
• Dizziness
• Insomnia
• Headache

You also should never take anyone else’s prescription medication.5 Even if you think your current dose isn’t effective, don’t attempt to resolve the issue by taking a larger dose. Talk to your doctor about your concerns instead.