ADHD medications, stimulants in particular, have a protective effect against suicidality. As well, stimulant medications lower risks for traffic accidents, smoking, and substance use disorders.
ADHD by itself is associated with insomnia and sleep problems, which can have adverse effects on cognition and behavior. Stimulant ADHD medications can effect sleep as well, and a baseline of sleep should be taken before medications are started.
ADHD experts weigh in positively on the ability and need for clinicians in primary care to treat ADHD