Evidence has been found to support the use of sustained-release bupropion, nicotine replacement therapy, atypical antipsychotics, and cognitive-behavioral therapy. Better outcomes are seen when two or more cessation strategies are employed, as well as for patients using atypical antipsychotics rather than typical antipsychotics. There is also no evidence for an increase in positive symptoms or side effects following smoking cessation, while there is evidence for a decrease in negative symptoms.[2][3][8]