Answer:
Wellbutrin is an antidepressant medication, which is prescribed off-label for smoking cessation. It is not clear how Wellbutrin works for smoking cessation, but we know that it helps reduce cravings and also reduces withdrawal symptoms. It is available in an immediate-release tablet (generic) as well as a sustained-release (SR) and extended-release (XL) tablet. The SR and XL formulations are both available in brand and generic. The SR is prescribed twice a day and the XL is prescribed once a day.