Understanding neurotransmitters and related drugs.

Chemical neurotransmitter substances are released at the axon terminals of the central, autonomic, and peripheral nervous systems of the human body. The most well-known of the neurotransmitters are acetylcholine, norepinephrine, dopamine, and serotonin. It is these substances that facilitate the conduction of nerve impulses throughout the body, allowing the coordination of body functions and enabling response to the environment. The efective action of neurotransmitters makes the difference between health and disease states. A nurse's understanding of neurotransmitters and of many common drugs influencing their function is essential to safe nursing practice.