The primary objective is to assess the efficacy a 20mg/day fixed dose of rimonabant versus placebo on abstinence from tobacco use in cigarette smoker.

The secondary objective is to evaluate the effects of rimonabant on craving and weight and on the clinical and biological safety and tolerability of rimonabant in a population of cigarette tobacco smokers during a 10-week treatment period.

Inclusion Criteria:

• Smokers smoking at least 10 cigarettes/day as a mean within the 2 months preceding the screening visit
• Motivated to quit with a score greater than or equal to 6 on the ten-point Motivation Scale

Exclusion Criteria:

• Non tobacco cigarettes consumption
• Chronic use of marijuana
• Pregnancy, breastfeeding
• Any clinically significant disease that might interfere with the efficacy or safety evaluation of the study drug
• Concomitant use of drugs as an aid to smoking cessation or that might induce weight change