Can you tell me about the best product on the market to help give up smoking?

Varenicline: And a smoking cessation program together have quit rates around 40%, which is almost twice as high as use of nicotine replacement therapies (patches, gum, lozenges) + a cessation program, or use of buproprion (zyban, wellbutrin) and a program. Drugs alone will produce about half the quit rate if they are not part of a comprehensive program. The trade name is chantix. Main side effect-depression.