Increasing doses of varenicline or nicotine replacement helps persistent smokers quit

For most smokers, quitting on the first attempt is likely to be unsuccessful, but a new study from The University of Texas MD Anderson Cancer Center found patients were more likely to quit if their cessation regimen was altered and doses were increased. Researchers also found that varenicline, a cessation medication, was more effective than combined nicotine replacement therapy (CNRT), such as patches or lozenges. 

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