Champix Side Effects


Champix is an oral prescription pill used to help quit smoking. It contains the active ingredient varenicline which works to stimulate as well as block the nicotine receptors in the brain.

Similar to many, if not all prescription medication, users may experience certain side effects when using the treatment. However, this should not prevent users from buying it, as it is primarily developed to generate positive effects in the long run in aiding users to quit smoking. Taking Champix medication under medical guidance can help significantly in kicking off the habit of smoking and help you to stop smoking.

There are various categories when understanding the possible side effects of Champix with some being more likely to occur than others. As each person reacts differently to the treatment, some may experience little to no side effects, whilst others may have more prominent side effects. These side effects either go away on their own as the body becomes more accustomed to the daily doses. If any of the Champix side effects do occur very frequently and are presenting problems, then it is important you visit your doctor for further medical advice.

Common side effects

  • Constipation
  • Indigestion
  • Stomach-ache
  • Diarrhoea
  • Increased appetite
  • Nausea
  • Dry mouth
  • Loss of taste in the mouth

Nausea has been reported as the most common side effect, with it being experienced by at least 10-30% of users. It is usually suggested whilst taking Champix to drink more water and eat less solid foods that are harder to digest. Remedial solutions such as drinking peppermint and ginger tea have also been said to be helpful in preventing or relieving nausea if it occurs.

Uncommon side effects

Certain other side effects are also possible, but are much less common, with occurrence said to be only in around 7-15% of users, these include: Fever Dizziness Heartburn Skin rash Drowsiness Cold sweats Lack of concentration Cough Nasal congestion

Some psychiatric side effects fall into this category, as certain sleeping disorders have been experienced including insomnia and nightmares. Other similar side effects include moments of euphoria or depression, hallucinations and mood swings. If you do feel that you are experiencing any of these, ensure you speak to your doctor as soon as possible.

Rare side effects

These side effects are very rare, and are most likely to occur in extreme cases, in which case medical help should be sought immediately.

  • Hearing and feeling sensations of inanimate objects
  • Anger
  • Anxiety
  • Suicidal thoughts

It is necessary to ensure that family members or your doctor is aware that you are using Champix so they can keep and eye out for any sudden, dramatic behavioural changes. If side effects are experienced, it may also discourage the user from carrying on with the treatment,therefore a strong mental attitude is required to use this treatment. You may need counselling and support from friends and family to get through the treatment course and stop smoking for good.

Reducing side effects of Champix

Do not take alcohol

When using Champix, it is recommended not to drink large amounts of alcohol as it reacts with the treatment and increases the likelihood of behavioural side effects such as anger, lack of concentration, and poor decision making.

Reduce nicotine intake

Do not use Champix alongside products that contain nicotine as this could alleviate the chance of side effects such as nausea, fatigue, drowsiness or dizziness.

Avoid interaction with other medication

It is essential you make your doctor aware of any other medication you may be taking, as it could interact adversely with varenicline. Medication such as Ranolazine (angina treatment) and Tivicay (HIV medication) have been known to increase the effects of varenicline in the blood which could thereby increase the chance of certain side effects. In this case your doctor may adjust your Champix dosages.

Completing your Champix course

The original Champix medication, which is manufactured by Pfizer, has produced successful results amongst many users who wished to quit smoking and take the recommended champix dosages for a 12-week period. Side effects are also less likely to occur if the original medication is purchased and used in accordance with the doctor’s direction. Although it may seem difficult during the treatment phase, there are many testimonials of users who are glad to have succcesfully completed the treatment course and stopped smoking for good. Even if you do not stop smoking on the first or second attempt, it is essential you keep trying to. Apart from the financial savings that would be made, siginicant health benefits are likely to occur once you have stopped. To find out more about quitting, visit NHS Smokefree service or click below for more information about Champix.

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