The drugs — varenicline (sold under the brand name Chantix) and bupropion (Zyban) — taken together increase the rates of quitting over 12 weeks compared with Chantix alone, the researchers found. After a year, however, relapse rates were similar using both approaches.
While these drugs MAY work, there are some serious side effects and they are NOT cheap. The cost of the pills themselves, the visit(s) to the Dr to get the prescription.
There are class-action lawsuits in progress against Pfizer regarding suicides while taking Chantix. the other drug is also known as Wellbutrin which is commonly prescribed for depression.