Adult patients ( n = 392 , 20-75 years ) admitted with a smoking-related illnesses to 3 hospitals were randomized to receive either 12 weeks of varenicline tartrate ( titrated from 0.5 mg daily to 1mg twice daily ) plus quitline-counseling ( VT+C ) , ( n = 196 ) or quitline-counseling alone ( n = 196 ) .