How do the major antipsychotic drugs exert their effects to reduce psychotic episodes?

a. They block dopamine receptors and reduce neuronal impulse transmission.
b. They redirect nerve impulses away from excitatory areas of the brain and into brain inhibitory areas.
c. They enhance the breakdown of excitatory neurotransmitter chemicals so that impulse transmission is slower.
d. They block the reuptake of neurotransmitters so that the concentration of these chemicals is increased in the brain.


A
All antipsychotic drugs tend to block dopamine receptors in the dopamine pathways in the brain. The normal effect of releasing the neurotransmitter dopamine is decreased. Transmission of im-pulses is decreased which in turn decreases the symptoms of hallucinations, illusions, and delu-sions.

Nursing

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