Nicotine Dependence Drugs Practice Test

In meta-analyses of smoking cessation treatments, researchers compare how well different medicines help people quit by pooling results from many trials. The clearest and most consistent signal across these analyses is that varenicline tends to produce the largest increases in quit rates compared with placebo and with most single-form nicotine replacement therapies. When studies look at using more than one NRT together, such as a patch plus an oral form, the data often show even greater quit-rate improvements than any single NRT product, giving strong, consistent evidence for the value of combination NRT. Nicotine gum on its own is effective and helpful for many people, but in head-to-head meta-analyses it typically doesn’t show the same level of quit-rate improvement as varenicline or combination NRT. Cytisine has promising results in some trials, but the overall, uniform evidence across diverse populations is not as robust as for varenicline or combination NRT. So, the therapies with the strongest evidence for higher quit rates in meta-analyses are varenicline and combination NRT.