Read the leaflet that comes with the medication before you take Chantix. This should tell you everything you need to know about taking it, but if you’re unsure of anything, ask our clinician.
Before you start Chantix, you’ll need to plan your quit date where you actually stop smoking. This is usually during the second week of taking it. You’ll begin Chantix on a low dose and increase this over the first couple of weeks.
How to take Chantix
In your Chantix starter pack you’ll get white tablets and light blue tablets. The white tablets carry 0.5mg of the active ingredient, varenicline, and the light blue tablets carry 1mg.
- On days 1-3 of treatment, take one white tablet once a day, at the same time each day.
- On days 4-7 of treatment, take one white tablet twice a day, one in the morning and one in the evening, at the same times each day.
- From day 8 onwards, take one light blue tablet twice a day, one in the morning and one in the evening, at the same times each day.
- It’s better to take your tablet after food.
- Swallow your tablet whole with a glass of water.
After you’ve completed the starter pack, you’ll move on to the maintenance pack that only contains 1mg light blue tablets.
A course of Chantix lasts for 12 weeks. If you manage to give up smoking successfully during this time, you might be prescribed another 12 week course to increase your chances of staying quit.
If you aren’t successful at quitting when using Chantix, it can sometimes help to take a break from the treatment and try again once you’ve been able to address the other factors that caused you to smoke.
Do some people need a lower dose of Chantix?
The maintenance pack is available in a 0.5mg dose in addition to the 1mg dose. These lower dose packs contain all white tablets, which you take in the same way as the higher dose pack: one tablet, twice a day.
You might be recommended the lower dose of Chantix if you’re older, or you’ve had a sensitive reaction or side effects when using the higher dose. Your clinician will always advise you on the best dose to use.
What if I miss a dose when taking Chantix?
Let us know if you forget to take your tablet. If your next scheduled dose is more than four hours away, you can take the missed tablet as soon as you remember and take your next one at the usual time, and continue.
If you forget to take Chantix and your next dose is due in less than four hours, skip the dose you missed and carry on taking it as normal.
When can I stop taking Chantix?
During your time taking Chantix, you’ll have continuous monitoring with a clinician to make sure it’s working for you. If you successfully quit, your clinician will advise you on the best time to stop taking it (to minimize the risk that you’ll get cravings and want to start smoking again).
You should continue taking Chantix for as long as recommended by your clinician. But tell your clinician right away if you get any side effects or think that you need to stop taking Chantix immediately.
Medically reviewed by
Ms Laurenmarie Cormier
on August 02, 2022.
This page was medically reviewed by Ms Laurenmarie Cormier, Nurse Practitioner
on August 02, 2022. Next review due on August 01, 2024.
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