Researchers from the University of Wisconsin have found similar rates of success among people who tried to quit smoking using one of 3 treatments – a nicotine patch, a combination of a nicotine patch and nicotine lozenges, or the prescription drug Chantix (varenicline). A year after trying one of the methods, about 20% of the people in each treatment group had successfully quit. The study was published online January 26, 2016 in Journal of the American Medical Association .