There is a slight difference between taking a medicine and taking it with a purpose in mind. When your doctor prescribes Champix for you, set yourself a 'quit' date and start taking the drug a week in advance. It will help you get over the withdrawal symptoms immediately after you quit. Depending on the results you get, you can go for a second 4-month course of Champix after completing the usual starter course. To make varenicline work for you, consider changing your eating and drinking habits. Stop sipping coffee in the morning if you think it is fueling your desire to smoke. It is proven by research that vegetables such as celery, carrot, cucumber and zucchini can help you defeat nicotine dependency. Avoid areas that are exclusive to smokers, such as office canteens or backstairs. Last but not the least, complete the prescribed course of medication as directed by your doctor.