Non Prescription ADHD Medication Medications for ADHD can help improve concentration and reduce the impulsive and hyperactive behaviors However, they don't work for all. They also have adverse effects and are a risk of addiction. Non-stimulant alternatives include Clonidine (Catapres, Kapvay), Atomoxetine (Strattera) and Guanfacine (Intuniv). These are called alpha