Which side effect is commonly caused by Prozac?

Prozac, which is a selective serotonin reuptake inhibitor (SSRI), is frequently associated with insomnia as a side effect. This is primarily due to the way SSRIs enhance serotonin levels in the brain, which can sometimes lead to increased arousal or alertness in some individuals. The stimulating effects of the medication can interfere with the ability to fall asleep or maintain restful sleep, thus resulting in insomnia.

When discussing other side effects, weight gain is often linked with different SSRIs, but Prozac is less commonly associated with this issue and is sometimes noted for having a more neutral impact on weight. Drowsiness can occur with some patients, but it is not a predominant effect of Prozac; in fact, many patients report the opposite reaction. Dry mouth is another potential side effect, but it is not as consistently reported as insomnia amongst users of Prozac. Understanding these nuances helps in recognizing how specific medications affect patients differently.