Identify one common medication used in treating ADHD.

The use of stimulants such as methylphenidate (Ritalin) is a well-established first-line treatment for Attention-Deficit/Hyperactivity Disorder (ADHD). Stimulants work by increasing the levels of certain neurotransmitters in the brain, particularly dopamine and norepinephrine, which helps to improve attention, focus, and impulse control in individuals with ADHD.

Methylphenidate is effective in enhancing the ability to concentrate and reducing hyperactive and impulsive behavior, making it a common choice among healthcare providers. The rapid onset of action and significant body of research supporting its efficacy and safety have solidified its role in treating ADHD.

In contrast, the other medications listed do not primarily target the core symptoms of ADHD. Antidepressants like fluoxetine are used to treat mood disorders and may not be effective for ADHD alone. Anxiolytics such as lorazepam are designed to relieve anxiety and are not indicated for ADHD. Antipsychotics like clozapine are mainly used to manage severe mental illnesses such as schizophrenia and are not a typical treatment for ADHD.