Understanding Effective ADHD Medications ADHD medications are broadly classified into two categories: stimulants and non-stimulants. Both types work differently but aim to improve brain function related to attention and impulse control. Stimulant Medications Stimulants are the most widely prescribed ADHD medications. They work by increasing the levels of certain neurotransmitters in the brain, such as dopamine and norepinephrine. This helps improve concentration and reduce hy