Pharmacology General fdbd7b3b CB 1 antagonist used in smoking cessation is ? A Naloxona B Rimonabant C Vareniloline D Bupripion High-Yield Explanation Ans. is 'b' i.e., Rimonabant Rimonabant A selective cannabinoid receptor-1 (CB-1) antagonist which is being tried as antismoking and antiobesity drug.