Stop Smoking

While varenicline is highly effective, it's not appropriate for everyone. It's contraindicated during pregnancy and breastfeeding, and alternative approaches are preferred for young people under 18. Dosage adjustments are necessary for people with severe kidney impairment. Those with a history of cardiovascular disease can use varenicline, but should be monitored as some studies suggest a small increased risk of cardiovascular events. People with serious psychiatric conditions can use varenicline, but should be monitored for mood or behaviour changes, particularly during the first few weeks of treatment. Varenicline is not suitable for those with rare hereditary galactose intolerance disorders. The medication has minimal interactions with other drugs, making it appropriate for people on multiple medications. For most adult smokers without these specific contraindications, varenicline is considered a first-line option due to its superior effectiveness. Your GP or smoking cessation specialist can help determine if varenicline is appropriate based on your specific health history and needs.

Varenicline and e-cigarettes represent different approaches to smoking cessation. Varenicline has robust evidence from numerous clinical trials demonstrating its effectiveness and safety, with 12-week quit rates around 44% (compared to 18% for placebo). It treats the neurochemical addiction directly but requires prescription and has a defined treatment duration. E-cigarettes, while increasingly popular, have more varied and evolving evidence. They can be effective for some smokers, particularly when used exclusively rather than alongside traditional cigarettes. E-cigarettes provide nicotine along with the behavioural rituals of smoking, which some find helpful. Unlike varenicline, they're readily available without prescription and may be used long-term. While generally considered less harmful than smoking, the long-term safety profile of e-cigarettes is still developing. Some smokers successfully use both approaches—varenicline to address physical dependence while occasionally using e-cigarettes in high-risk situations.

If varenicline doesn't work for you or causes intolerable side effects, several alternative approaches are available. First, consult your healthcare provider about dosage adjustment—sometimes reducing to 0.5mg twice daily improves tolerability while maintaining effectiveness. If nausea is problematic, taking the medication with food and plenty of water may help.