Over the course of several months and for no apparent reason, Jennifer became progressively more despondent, withdrawn, and listless. Her doctor accurately diagnosed the problem as major depressive disorder and started Jennifer on an antidepressant drug called Prozac. Three weeks later, Jennifer was much improved. Like some other antidepressant drugs, Prozac works by _____ the availability of _____ in the brain.
A) increasing; serotonin
B) decreasing; dopamine
C) increasing; endorphins
D) decreasing; acetylcholine

Question

Quizplus · Accepted Answer

Prozac is a selective serotonin reuptake inhibitor (SSRI), which increases the availability of serotonin in the brain. Serotonin is a neurotransmitter that is associated with mood regulation and is often found to be low in individuals with major depressive disorder. By increasing the availability of serotonin, Prozac helps to alleviate depressive symptoms.

Over the Course of Several Months and for No Apparent