Which of the following side effects is NOT commonly associated with Bupropion?

Bupropion, a medication primarily used as an antidepressant and smoking cessation aid, is associated with several common side effects. Seizures, for instance, can occur, especially at higher doses or in individuals with a history of seizure disorders, making this a known risk. Weight loss is also frequently noted as a side effect; many patients experience a reduced appetite and subsequent decrease in weight while on this medication.

Insomnia is another typical side effect, as Bupropion has stimulating properties that can interfere with the ability to sleep, leading to difficulty falling or staying asleep.

In contrast, excessive sleepiness is generally not associated with Bupropion. Instead, if anything, it tends to have a stimulating effect, which can lead to increased energy levels and, thus, less tendency for drowsiness. Consequently, while the other options reflect potential side effects of Bupropion, excessive sleepiness stands out as not commonly linked to the use of this medication.