2 identiske, dobbeltblindede kliniske forsøg sammenlignede virkningen af CHAMPIX (1 mg 2 gange dagligt), depotformuleret bupropion (150 mg 2 gange dagligt) og placebo ved rygeophør.
Two identical double-blind clinical trials prospectively compared the efficacy of CHAMPIX (1 mg twice daily), sustained release bupropion (150 mg twice daily) and placebo in smoking cessation.