What type of drugs primarily affect the sympathetic nervous system?

Stimulants are the type of drugs that primarily affect the sympathetic nervous system. These substances work by increasing the release of certain neurotransmitters, such as norepinephrine and dopamine, which heightens arousal, elevates mood, and leads to increased alertness. The activation of the sympathetic nervous system results in physiological changes like increased heart rate, elevated blood pressure, and heightened energy levels.

Stimulants include drugs such as amphetamines, cocaine, and caffeine, all of which can lead to a state of hyperactivity and increased focus due to their effects on neurotransmission. This categorization distinguishes stimulants from other types of drugs that have different mechanisms of action and effects on the nervous system.