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Varenicline Tartrate

Champix is a stop smoking treatment made by Pfizer. It works by providing stimulation to nicotine receptors in the brain, and helps to make the act of smoking less appealing.

Quitting smoking is never easy, but help is at hand. At, you can get next-day delivery of Champix stop smoking tablets by clicking 'start now' and completing our brief questionnaire.

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This maintenance pack contains 1mg varenicline tablets, and should not be taken until completion of the starter pack. They are taken twice a day. A full Champix course lasts for up to 12 weeks.

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The tablets in this maintenance pack contain 0.5mg varenicline, which is half the standard dose. This pack is recommended for those who might be to sensitive higher doses of this treatment.

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Champix Starter Pack500mcg/1mg

People beginning this treatment will choose the Champix Starter Pack. This contains 11 tablets of 0.5mg which is the initial dose for the first week, and 14 of the 1mg tablets, which covers the second week.

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You can highlight a preferred treatment, dose or amount to our prescriber, but to ensure your safety the final decision on any treatment you are offered is always the prescriber's. After your consultation, our prescriber may suggest a different treatment, or dose or amount of treatment (or not recommend treatment at all).

Please note: this service is not to be used in an emergency. Call 999 if you need urgent medical attention.
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Champix is a stop smoking treatment made by Pfizer. It works by providing stimulation to nicotine receptors in the brain, and helps to make the act of smoking less appealing.

Quitting smoking is never easy, but help is at hand. At, you can get next-day delivery of Champix stop smoking tablets by clicking 'start now' and completing our brief questionnaire.

This content was reviewed by a clinician on

09 March 2021
dr daniel

Dr Daniel Atkinson

(GP Clinical Lead - GMC No. 4624794) 09 March 2021
Product information

Champix is an effective stop smoking medication, which works in a similar way to nicotine replacement therapy, but it does not contain nicotine. It is made by Pfizer, and designed to be applied as part of a motivational stop smoking programme.

A typical course of treatment consists of one tablet taken twice a day, and lasts for 12 weeks. After this, a doctor may choose to lower the dose if the user has successfully quit.

  1. Branded smoking cessation drug
  2. Simple to use 12 week course
  3. Significantly lowers cravings

How does Champix work? 

Champix is a prescription treatment containing varenicline tartrate, which can help to curb feelings of physical withdrawal. It is designed to be taken when a person is trying to give up smoking, and works by arousing the receptors in the brain which are susceptible to nicotine. This stifles the need for a cigarette, and reduces the effect of inhaled nicotine on these receptors.

By removing physical dependency from the equation, Champix enables the user to tackle their social and psychological channels of addiction head on, and this helps to increase their chances of successfully giving up.

Why is it difficult to quit smoking?

Smoking is a habit which many people take up during their formative years. According to research by charity group ASH (Action on Smoking and Health), over half of smokers start before the age of 18. And while this can make it hard for long term smokers to quit cigarette in their later years, those who haven’t smoked for very long might experience difficulty giving up too.

There are numerous factors which play a role in causing ex-smokers to relapse. Social pressure is one. Many people who smoke will have friends who indulge in the habit too. It can form the basis of conversations, and you might consider ‘being a smoker’ to be a part of your personality.

Psychological pressure is another factor. Certain situations you are faced with in everyday life, whether they are related to work, or your social life, might seem more bearable with the prospect of a cigarette afterwards. Once you have gotten used to the ritual of smoking at certain times, it can be tough to adjust.

The physical dependency which smoking causes can also make quitting tougher. This dependency is caused by the activity of nicotine in the body, which is inhaled through cigarette smoke. When you light up, you provide receptors in the brain with chemical stimulation. Over time, these receptors become trained to expect this on a continuing basis. It is these receptors telling your brain that you need a ‘nicotine hit’ when you haven’t had a cigarette for a while. And this leads to craving.

Can I buy Champix online? 

You can buy Champix PFIZER from our online clinic. All you need to do is complete our short medical questionnaire. We issue this to every customer who orders with us, as it enables our doctor to assess your suitability for the medicine you have chosen. If our doctor thinks the treatment is safe for you to use, your order will be passed on to our UK based dispensing pharmacy, who will ship your item to you in just one working day.

What is the active ingredient in Champix?

The active ingredient in Champix is varenicline tartrate, which works in a similar way to nicotine replacement therapy. This means that it helps to reduce the user’s need to smoke by engaging with the same receptors in the brain. It increases the activity of certain chemicals which stimulate these receptors and in turn reduces cravings.

Another role of varenicline is to make chemicals inhaled through tobacco smoke less functional. It does this by blocking nicotine from interacting with the brain when the user smokes, thereby reducing its pleasurable effects.

There is currently no generic version of varenicline on the market, and the drug is only sold as a smoking cessation aid as the branded product, Champix, made by Pfizer. It is important to be aware of these facts when buying medicines online, as some websites may claim to offer generic products which do not yet exist.

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Page last reviewed:  09/03/2021

How to use Champix

To ensure your treatment is effective, follow the directions supplied by your doctor. Prior to first use, you should always read the patient information leaflet fully. This will help you to minimise the risk of encountering side effects.

  1. First-time users should select Champix Starter Pack. Champix refills are for users who are continuing treatment.
  2. Take Champix as directed by your doctor.
  3. Be aware that it is only effective in cases where the user is motivated to stop smoking.
  4. Prior to commencing treatment, decide on a specific stop smoking date. This is most typically during the second week of the course.
  5. You will be supplied with two kinds of tablet: a white tablet containing 0.5 mg of the active ingredient varenicline; and a blue tablet containing 1 mg.

You may be advised to do the following:

  1. On days 1-3 of the first week, take one white tablet once a day.
  2. On days 4-7 of the same week, take one white tablet twice a day.
  3. On all days during the second week, take one blue tablet twice a day.
  4. On all remaining days, you should take one blue tablet twice a day.
  5. Swallow tablets whole with water.
  6. Try to take them at the same time each day, one in the morning and one at night.
  7. Once you have completed 12 weeks of treatment, a doctor may choose to decrease the dose if you have stopped smoking.
  8. Never take more than the amount prescribed by your doctor.
  9. Do not compensate for a missed dose with a double dose. If you miss one, continue the course as normal.

These instructions are only intended as a guide. For more detailed advice, refer to the leaflet provided or ask your prescriber.


Page last reviewed:  09/03/2021
Please read the patient information leaflet for this medicine fully before use:

Champix 1mg

Champix 500mcg

Champix Starter Pack 500mcg/1mg

Side effects & Warnings

Champix Side effects

There are a number of possible side effects which may occur as a result of this medicine. Not everyone will experience them, but it is important to know what they are. If while using this treatment you notice any side effects or anything at all which you would consider unusual, you should contact your GP or your nearest hospital.

Common (1 in 10 people or more):

Inflammation of the nasal passage, abnormal dreams, insomnia, headache, nausea.

Uncommon (1 in 10 people or less):

Weight gain, chest infection, sinus inflammation, elevated or reduced appetite, drowsiness, dizziness, breathlessness, cough, heartburn, vomiting, constipation, diarrhoea, feelings of bloatedness, abdominal pain, toothache, skin irritation, aching joints or muscles, back pain.

Rare (1 in 100 people or less):

Viral or fungal infection, reduced judgment, restlessness, mood swings, depression, seizure, tremor, increased sensitivity, conjunctivitis, ringing in the ears, increased heart rate, flushing, raised blood pressure, bloody stools, upset stomach, mouth ulcers, increased perspiration, flu like symptoms, and fever.

Very rare (1 in 1,000 people or less):

Stroke, increased muscle tension, irregular heartbeat, difficulty speaking, loss of coordination, vaginal discharge, loss of sex drive, hallucinations and sight problems.

Please note that this is not a comprehensive list. A more detailed account can be found in the patient information leaflet.

Taking it with other medications

Please tell your prescriber if you are using any other treatments during consultation, as these may affect your suitability for this product.

Champix may interact with, or increase or decrease the effects of: cimetidine, clozapine, theophylline, dextropropoxyphene, flecainide, tacrine, fluvoxamine, olanzapine, pentazocine, phenylbutazone, benzodiazepines such as oxazepam, beta-blockers such as propranolol, tricyclic antidepressants such as imipramine, or warfarin.

Do not use Champix in unison with any other prescription smoking cessation aid.

Conditions to look out for

Let your doctor know if you have a history of any medical conditions, as these could make this treatment unsafe for you to use.

This product may not be suitable for people with the following conditions: decreased kidney function; cardiovascular illness; psychiatric illness; or epilepsy.

Consult the leaflet provided for more detailed information.

Pregnancy and breastfeeding

Do not use Champix if you are pregnant or breastfeeding.

If you are planning to become pregnant, talk to your doctor. This treatment will need to be timed so that you have completed it before becoming pregnant.

Driving and using machines

This medicine may cause dizziness and drowsiness. Wait and see how this medicine affects you before attempting to drive or use machines.

Food, drink and alcohol

Higher alcohol intoxication in some patients using this medication has been reported. It is unknown whether this medication directly causes this.

Page last reviewed:  09/03/2021
Please read the patient information leaflet for this medicine fully before use:

Champix 1mg

Champix 500mcg

Champix Starter Pack 500mcg/1mg


Can I still drink alcohol?

There have been reports of increased intoxication from alcohol in patients using this medicine. Whether or not this treatment raises alcohol intoxication levels however is not known.

Will I still be able to drive?

This product should not impair your ability to drive, but may cause side effects which could make driving unsafe. If you experience these, do not drive and contact your nearest doctor.

Can I take this medicine while pregnant?

No. It is not suitable for use by those who are pregnant or breastfeeding, and should not be used by those who are planning to become pregnant. Speak to your doctor about alternative forms of treatment in these cases.

How should I store it?

In a dry environment below 30 degrees and out of the reach of children.

Am I allergic to anything in the medicine?

Champix contains varenicline tartrate, cellulose, microcrystalline, calcium hydrogen phosphate anhydrous, croscarmellose sodium, silica, colloidal anhydrous, magnesium stearate, hypromellose, titanium dioxide (E171), macrogols, triacetin and indigo carmine aluminium lake (E132).

Do not use this product if you are allergic to any of the ingredients listed above.

Can I buy Champix over the counter?

No. As it is a prescription medicine, you can only buy Champix PFIZER in the UK after prior consultation with a doctor.

Is it right for me?

We can help you find out. Take one of our health assessments today. Your answers will be reviewed by a qualified physician. If they find it suitable, they will make out a prescription for you and send this to our pharmacy. Your order will then be dispensed and dispatched, and you’ll receive it in just 24 working hours.

Page last reviewed:  09/03/2021 is rated 4.9 out of 5 by 3256 customers on TrustPilot!
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