Description
What is Varenicline?
Varenicline (often known by the brand name Champix) is a prescription tablet used by adults who are ready to give up smoking. Unlike nicotine patches or gum, it contains no nicotine. Instead, it works directly on the same areas of the brain that nicotine affects, helping to ease the transition away from cigarettes.
What It Does in the Brain
Varenicline partially activates brain receptors affected by nicotine, which helps reduce cravings and take the edge off withdrawal. At the same time, it blocks nicotine from fully binding to those receptors — so if you do smoke, the usual reward feeling is reduced, making cigarettes less satisfying.
How It’s Typically Taken
Varenicline is usually started before your actual quit date so your body can adjust in advance:
- Days 1–3: 0.5mg once daily
- Days 4–7: 0.5mg twice daily
- Day 8 onwards: 1mg twice daily
Treatment generally continues for around 12 weeks. In some cases a second course may be recommended. Take tablets after meals with a glass of water.
Who It’s For
Intended for adults aged 18 and over who want to stop smoking. Especially helpful if nicotine replacement therapies haven’t worked well in the past. Do not combine with other nicotine-based treatments unless advised by a healthcare professional.
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