Champix (varenicline) is a treatment to help people to stop smoking. The treatment is a 12 week course of tablets which can help to relieve the craving and withdrawal symptoms associated with stopping smoking. During the first two weeks of taking Champix, you will continue to smoke. Most people set their quit date between 10 to 14 days of taking Champix.

You are not recommended to smoke after your quit date, but if you do, Champix can reduce the enjoyment you feel from smoking cigarettes. Champix is not the same as nicotine replacement therapy.


The usual dose is 1mg Champix twice a day following a one week titration as follows:

Week 1

Days 1-3

0.5mg tablet once a day

Days 4-7

0.5mg tablet twice a day

Week 2-12

Day 8 until end of treatment

1mg tablet twice a day

Your doctor may recommend a different dose if, for example, you experience adverse effects that you cannot tolerate or if you have problems with your kidneys.

Champix tablets should be swallowed whole, with water, and can be taken with or without food.