Over the course of several months and for no apparent reason, Jennifer became progressively more despondent, withdrawn, and listless.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 showed much improvement. 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 works by increasing the availability of serotonin in the brain. Serotonin is a neurotransmitter that is involved in regulating mood, and a reduction in its availability has been linked to depression. By increasing the amount of serotonin available in the brain, Prozac can alleviate the symptoms of depression.

Over the Course of Several Months and for No Apparent