Prescribed drugs
There are two forms of drugs commonly prescribed in the UK to help people quit smoking; here’s an introduction to each.
To discuss whether either Zyban or Champix is right for you, speak to your GP or local stop smoking service. Both Champix and Zyban are most effective when used as part of a stop smoking service programme.
Champix® (varenicline)
Champix (also known as varenicline) has been available in the UK since December 2006.
Champix is a prescription-only drug that works by changing the way the brain reacts to nicotine. It makes it harder to get pleasure from nicotine and also helps to reduce cravings blocking the receptor in the brain that responds to nicotine.
Using Champix can increase the odds for stopping successfully by up to four times.
Few people have reported any side effects of using Champix, although side effects do occur. Your GP or pharmacist can tell you more. Champix is not currently recommended for use by under 18s or pregnant women.
Zyban® (bupropion)
Zyban® is a prescription-only drug treatment that works by changing the brain's response to nicotine. It makes smoking less pleasurable and reduces craving while you work on your smoking habits. Zyban should be taken over a two month period.
The most common side effects of stopping smoking with Zyban are insomnia, dry mouth and headache (about 30 per cent of users experience these). Other side potential side effects should be discussed with you GP or pharmacist before you begin using Zyban. It is not recommended for pregnant women, under 18s, people with seizure risk, people who have had a head trauma, people with eating disorders or in combination with certain other medicines - your doctor will advise.
Using Zyban can double the chances of a successful quit attempt.