Pharmacology General 6bef7e1a Varenicline acts by ? A Paial nicotine receptor agonist B Nicotine receptor antagonist C Both agonist and antagonist at nicotine receptor D None of the above High-Yield Explanation Ans. is 'a' i.e., Paial nicotine receptor agonist Varenicline It is paial agonist at the nicotine receptor. It is used in nicotine addicts.