Champix 1mg 112 tablets
Champix tablets (from Pfizer) contain
varenicline, which is used to help stop smoking. Champix reduces craving
and nicotine withdrawal symptoms. It also makes smoking less
Champix (varenicline) mimics the effects of nicotine
and blocks its pleasurable effects. A person taking Champix will find it
easier to stop smoking and will be less tempted by cigarettes. In some
ways Champix replaces nicotine during the time when a smoker is giving
How to take Champix
Champix tablets are started two
weeks before the 'quit date'. There is a starter pack which allows the
dose of Champix to be built up slowly over 2 weeks to reach a dose of
one 1mg tablet twice a day. Two weeks after starting Champix smoking is
stopped. Champix is then continued at a dose of 1mg twice daily for 12
weeks. After 12 weeks treatment is stopped, by which time smokers should
have given-up and kicked the habit.
Some people, who do not
manage to give up, and start smoking again, can try Champix again and
can take it for longer (up to 24 weeks). If the usual dose of 1mg twice
daily is too strong, and not tolerated, a lower dose of 0.5mg twice
daily may be prescribed.
If a person starts smoking whilst they
are taking Champix, the course of treatment has failed, and they should
stop treatment. It is not harmful to continue with Champix, but the
attempt to quit has failed.
If extra Champix tablets are taken in
error, seek medical advice. If a dose or doses are missed, do NOT make
up the missed dose by taking extra, but resume at the normal daily dose.
Champix can be taken with or without food. Tablets should be swallowed whole.
has been associated in some people with depression, suicidal ideation,
behaviour changes and suicide attempts. People taking Champix who
develop agitation, depressed mood, changes in behaviour that are of
concern to themselves, or their family and friends, or doctor, or
develop suicidal thoughts or behaviours, should stop treatment and
contact a doctor immediately. For further details see the https://www.medicines.org.uk/emc/medicine/19042 Champix patient information leaflet .
increased irritability, sleep disturbance and an urge to smoke can
occur when Champix is stopped. If this occurs, a doctor may recommend
reducing the dose of Champix slowly before stopping completely.
Pregnancy and breast-feeding
should not normally be taken whilst pregnant or breastfeeding. If
inadvertently taken during pregnancy, consult a doctor.
Driving and using machines
Champix may produce dizziness and sleepiness. If affected in this way, do not drive, operate complex machinery.
Suitability of Champix
Some people, usually only those with pre-existing heart
problems, may experience cardiovascular symptoms. Stop Champix and seek
emergency medical help in the event of angina, heart attack or stroke
symptoms, all of which would be very rare. Champix is not usually
suitable for people who have a history of seizures or epilepsy. Champix
is for use by adults only, not under 18s.
Other medicines and Champix
can be taken safely with most prescription and non-prescription
medicines. However, there are some medicines which have the potential to
interact with Champix and the doses of some prescription medicines may
need to be adjusted whilst taking Champix. For further information see
the https://www.medicines.org.uk/emc/medicine/19042 patient information leaflet supplied with Champix. People taking antidepressants should consult their usual doctors before taking Champix.
stop-smoking medicines may interact with Champix, most notably nicotine
replacement products, and these should not be used at the same time.
Side effects of Champix
Most people can take Champix without significant side effects, however some side effects are not unusual.
The most common side effects, affecting more than 1 in 10 are:
- inflammation of the nose and throat
- abnormal dreams
- difficulty sleeping
- headache and nausea
Other common side effects, which may affect up to 1 in 10 people include:
- chest infection
- inflammation of the sinuses
- increased weight
- increased or decreased appetite
- changes in the way things taste
- shortness of breath
- constipation or diarrhoea
- feeling bloated
- abdominal pain
- dry mouth
- skin rash
- joint ache
- muscle ache
- back pain
- chest pain
Other side effects are less common. For more detail about Champix side effects, see the patient information leaflet.
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