American journal of health behavior
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Randomized Controlled Trial Multicenter Study
Varenicline versus bupropion SR or placebo for smoking cessation: a pooled analysis.
To evaluate varenicline's efficacy for smoking cessation versus bupropion SR and placebo and to explore whether factors typically predictive of abstinence influence varenicline's efficacy versus placebo, as measured by the week 9-12 continuous abstinence rate (CAR9-12). ⋯ Varenicline was more efficacious than bupropion SR or placebo. Varenicline's efficacy versus placebo was not influenced by factors predictive of abstinence.