Drugs Affecting the Neurological System

Adrenergic Agonists (Sympathomimetics) Nursing Pharmacology Study Guides

Adrenergic Agonists (Sympathomimetics)

Adrenergic agonists are autonomic nervous system drugs that stimulate the adrenergic receptors of the sympathetic nervous system (SNS), either directly (by reacting with receptor sites) or indirectly (by increasing norepinephrine levels). An adrenergic agonist is also called a sympathomimetic because it stimulates the effects of SNS.

Anxiolytic and Hypnotic Drugs

Anxiolytic-hypnotics agents are used to alter an individual’s responses to environmental stimuli. These agents are referred to as anxiolytics (prevent feelings of tension or fear), sedatives (help patient feel calm and unaware of their environment), and hypnotics (help patients sleep).

Antidepressants

Antidepressants are used to alter the concentration of neurotransmitters in the brain that is responsible for the depressed affect (feelings in response to the environment, whether positive and pleasant or negative and unpleasant).