How does Prozac primarily function in the body?

Prozac, also known as fluoxetine, primarily functions as a selective serotonin reuptake inhibitor (SSRI). By inhibiting the reuptake of serotonin in the brain, it increases the availability of this neurotransmitter in the synaptic cleft. This enhanced serotonin signaling is associated with improvements in mood and emotional regulation, which is why Prozac is commonly prescribed for conditions such as depression and anxiety.

In the context of the other choices, Prozac does not primarily act on dopamine or norepinephrine pathways, nor does it function as a GABA enhancer. While these neurotransmitters play important roles in mood and anxiety regulation, Prozac’s mechanism specifically targets serotonin to achieve its therapeutic effects. Understanding the action of Prozac can help in comprehending its use in treatment and the rationale behind prescribing SSRIs for mood disorders.