Generic Champix belongs to a class of medications called smoking cessation aid. It helps people quit smoking or nicotine addiction. If you have a nicotine addiction, generic Champix is perhaps the best way to quit this addiction. The formula that is the key constituent in Champix is varenicline. You can buy generic Champix if you are a habitual smoker and inhale more smoke, about 10 to 20 or more cigarettes a day. The entire course of generic Champix is of 12 weeks. You will have to take this medicine throughout the tenure to be able to quit smoking. Apart from that, a smoker also requires self-will to quit nicotine in order for this medication to work. If there is a relapse of nicotine usage, then one needs to take an additional generic Champix course of 12 weeks to ensure that they quit smoking. Champix does not work like Nicotine replacement therapy. If you buy generic Champix and administer it on a regular basis, it will help you to forego the habit of smoking as it reduces the enjoyment you get out of it.