Central Nervous System Agents are medications that affect the brain and spinal cord, which together make up the Central Nervous System (CNS). These agents can be classified into various categories, including antidepressants, antipsychotics, anxiolytics, and stimulants. They are commonly used to treat conditions such as depression, anxiety, schizophrenia, and attention deficit hyperactivity disorder (ADHD). These agents work by altering the chemical signals in the brain, helping to balance neurotransmitters like serotonin, dopamine, and norepinephrine. By doing so, they can improve mood, reduce anxiety, and enhance focus. However, they may also have side effects, and their use should be monitored by a healthcare professional.