Researchers determined that both the prescription smoking cessation medication varenicline (Chantix) and standard over-the-counter and prescription nicotine replacement therapies (NRT) -- including patches, gums, lozenges, inhalers and nasal sprays -- were highly effective at helping patients quit smoking and curtail drinking at the same time
For the investigation, the subjects received an infusion of nicotine that was labeled so it could be traced as it passed through the body, which was followed by frequent blood sampling
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