How long should Chantix treatment last?

The standard course lasts 12 weeks. If a person has quit smoking by the end of that period, another 12‑week course of 1 mg twice daily may be offered to help maintain abstinence.

What side effects are common with varenicline?

Common side effects include nausea, vivid dreams, trouble sleeping, headache, constipation, flatulence, and vomiting. Nausea affects about 30% of users and may lead to dose reduction or stopping treatment.

How does varenicline support smoking cessation?

Varenicline reduces nicotine cravings and withdrawal by partially activating nicotine receptors. At the same time, it prevents nicotine from fully activating receptors, making cigarettes less rewarding and easing the transition to quitting.

How does varenicline differ from nicotine replacement therapy?

Varenicline does not contain nicotine. It works directly on brain receptors to reduce cravings and block nicotine’s pleasurable effects, rather than supplying nicotine like patches or gum.

Is monitoring needed while on a partial agonist like varenicline?

Yes. Mood, behavior, or thinking changes should be watched. Any signs of serious mental health symptoms warrant stopping varenicline and seeking medical review promptly.

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Home / Online Pharmacy / Chantix

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US Name:

Chantix
Alternative Names:

Chantix, Champix
Active Ingredients:

Varenicline
Brand Manufacturer:
Manufacturer Location:
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Chantix ^*

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Chantix / Teva-Varenicline / Apo-Varenicline are smoking cessation medications that help adults who want to stop smoking.

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Teva-Varenicline Generic	1mg 56 Tablets	- Chantix – Generic, Teva-Varenicline, 1mg, 56, Tablets, 888888, Teva, 2213 + 0	Our price: $121.00
Apo-Varenicline Generic	0.5mg 56 Tablets	- Chantix – Generic, Apo-Varenicline, 0.5mg, 56, Tablets, 888888, Apotex, 2212 + 0	Our price: $109.00

*Please note all prices are in US dollars

Description
Side Effects
Indications
FAQ
Video

Chantix / Teva-Varenicline / Apo-Varenicline (generic name: varenicline) are smoking cessation medications that help adults who want to stop smoking. Varenicline works by binding to nicotinic acetylcholine receptors in the brain, acting as a partial agonist, which reduces nicotine cravings and eases withdrawal symptoms. It also blocks nicotine from activating those receptors, making any smoking less satisfying. Varenicline belongs to the pharmacological class of nicotinic receptor partial agonists.

Dosage

Follow the prescribing doctor’s dosage instructions which are printed on the label of the box. Check with a doctor or pharmacist if there are any doubts regarding the proper dosage and treatment regimen. A person should choose a quit-smoking date and start Chantix one week before that date. The usual regime is as follows:

Days 1–3: take 0.5 mg once daily (white tablet).
Days 4–7: take 0.5 mg twice daily, morning and evening.
Day 8 to end of treatment (usually 12 weeks): take 1 mg twice daily, morning and evening.
If smoking has stopped after 12 weeks, an additional 12 weeks of 1 mg twice daily may be offered.
Tablets should be swallowed whole with water, with or without food.

If a dose is missed, it should be taken as soon as remembered. If it is close to the next scheduled dose, the missed dose should be skipped. Do not take two doses at once.

Storage

Store Chantix at room temperature, not above 25 °C (~77 °F).
After opening a bottle, the shelf life is 28 days.
Keep tablets in the original packaging, protected from moisture and heat.
For more general information, read our article on drug storage.

This text is for informational purposes only. Please consult a doctor or pharmacist before using any medication.

The information leaflet that comes with the medication includes full information about the possible side effects. Be sure to read and understand these, and if there are any questions, discuss these with a healthcare provider or pharmacist before starting treatment.

Caution

Pregnant women should not be using Chantix unless this has been discussed with a healthcare provider, as it might harm the unborn baby or pose a risk of miscarriage. For this reason, women planning to become pregnant should use appropriate birth control measures during the treatment and one month after taking the last dose of Chantix. Chantix may pass into breast milk, and mothers should consult with a doctor if already feeding or planning to feed an infant.

Most people who use Chantix do not experience any adverse side effects. Doctors prescribe this medication because they assess the benefits of such treatment outweigh any likely unwanted effects.

Some of the side effects that have been reported include:

Nausea
Abnormal or vivid dreams
Trouble sleeping (insomnia)
Headache
Constipation and flatulence

Not all side effects are listed here. If these or other unlisted symptoms persist or worsen, consult a healthcare provider or pharmacist.

Chantix is approved for smoking cessation in adults, helping to stop tobacco use. It relieves symptoms of nicotine withdrawal such as cravings, irritability, anxiety, restlessness, difficulty concentrating, and increased appetite. A person may also experience reduced satisfaction if smoking occurs during treatment.

The focus is solely on adult smokers motivated to quit, typically as part of a smoking‑cessation program including counseling and behavioral support.

The standard course lasts 12 weeks. If a person has quit smoking by the end of that period, another 12‑week course of 1 mg twice daily may be offered to help maintain abstinence.

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