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Always take this medicine exactly as your doctor has told you. Check with your doctor or pharmacist if you are not sure.

You are more likely to stop smoking if you are motivated to stop. Your doctor and pharmacist can provide advice, support and sources of further information to help ensure your attempt to stop smoking is successful.

Setting a quit date

Before starting your course of CHAMPIX you should usually decide on a date in the second week of treatment (between day 8 and day 14) when you will stop smoking. If you are not willing or able to set a target quit date within 2 weeks, you may choose your own target quit date within 5 weeks after starting treatment. You should write this date on the pack as a reminder.

How to start taking CHAMPIX

CHAMPIX comes as a white tablet (0.5 mg) and a blue tablet (1 mg). You start with the white tablet and then usually go to the light blue tablet. See chart below for the usual dosing instructions, which you should follow from Day 1.

Week 1 Dose
Day 1–3 From day 1 to day 3, you should take one white CHAMPIX 0.5 mg film-coated tablet once a day.
Day 4–7 From day 4 to day 7, you should take one white CHAMPIX 0.5 mg film-coated tablet twice daily, once in the morning and once in the evening, at about the same time each day.
Week 2 Dose
Day 8–14 From day 8 to day 14, you should take one light blue CHAMPIX 1 mg film-coated tablet twice daily, once in the morning and once in the evening, at about the same time each day.
Weeks 3–12 Dose
Day 15 to end of treatment From day 15 until the end of treatment, you should take one light blue CHAMPIX 1 mg film-coated tablet twice daily, once in the morning and once in the evening, at about the same time each day.

After 12 weeks of treatment, if you have stopped smoking, your doctor may recommend an additional 12 weeks of treatment with CHAMPIX 1 mg film-coated tablets twice daily to help avoid returning back to smoking.

If you are not able or willing to quit smoking straight away, you should reduce smoking during the first 12 weeks of treatment and quit by the end of that treatment period. You should then continue to take CHAMPIX 1mg film-coated tablets twice daily for a further 12 weeks resulting in a total of 24 weeks of treatment.

Should you experience adverse effects that you cannot tolerate your doctor may decide to reduce your dose temporarily or permanently to 0.5 mg twice daily.

If you have problems with your kidneys, you should speak to your doctor before taking CHAMPIX. You may need a lower dose.

CHAMPIX is for oral use. The tablets should be swallowed whole with water and can be taken with or without food.


Taking Champix correctly

As for any prescription-only medicine, it is important that you take CHAMPIX exactly as prescribed by your healthcare professional.

If you take more CHAMPIX than you should

If you accidentally take more CHAMPIX than your doctor prescribed, you must seek medical advice or go to the nearest hospital casualty department immediately. 

Take your box of tablets with you.

If you forget to take CHAMPIX

Do not take a double dose to make up for a forgotten tablet. It is important that you take CHAMPIX regularly at the same time each day.

If you forget to take a dose, take it as soon as you remember. If it is within 3–4 hours your next dose, do not take the tablet that you have missed.

If you stop taking CHAMPIX

It has been shown in clinical trials that taking all doses of your medicine at the appropriate times and for the recommended duration of treatment described above will increase your chances of stopping smoking. Therefore, unless your doctor instructs you to stop treatment, it is important to keep taking CHAMPIX, according to the instructions described in the table on this page.

In smoking cessation therapy, the risk of returning to smoking may be elevated in the period immediately following the end of treatment. You may temporarily experience increased irritability, urge to smoke, depression and/or sleep disturbances when you stop taking CHAMPIX. Your doctor may decide to gradually lower your dose of CHAMPIX at the end of treatment.

If you have any further questions on the use of this medicine, ask your doctor or pharmacist.

PP-GIP-GBR-3393. April 2018.

How do I take CHAMPIX?