Varenicline
Chantix (varenicline) is a prescription medication specifically designed to help adults quit smoking by reducing nicotine cravings and withdrawal symptoms. It works by partially stimulating nicotine receptors in the brain, which diminishes the pleasurable effects of smoking while easing withdrawal discomfort. This medication is typically used as part of a comprehensive quit plan that may include counseling and support.
Chantix is a prescription smoking cessation aid that helps reduce cravings and withdrawal symptoms by targeting nicotine receptors in the brain.
Key facts at a glance
- RxNorm
- 636230
- Generic
- Chantix
- Class
- brand-name
- Brands
- —
- Availability
- rx
- Lactation
- unknown
- Routes
- —
- Forms
- —
- Regions
- US, EU, CN, JP
- Monitoring
- —
This page is for informational purposes only.
Do not use this information to diagnose yourself or to replace a physician's advice. Always consult a qualified healthcare provider before starting, stopping, or changing any medication. If you believe you are experiencing a medical emergency, call your local emergency number immediately.
Chantix is indicated to help adults quit smoking. It is used as part of a smoking cessation program that may include behavioral support and counseling. Treatment typically begins 1-2 weeks before the quit date.
Chantix is a nicotinic receptor partial agonist. It binds to nicotine receptors in the brain, partially stimulating them to reduce withdrawal symptoms while simultaneously blocking nicotine from binding, which diminishes the rewarding effects of smoking if the patient relapses.
Common side effects include nausea, vivid dreams, and changes in taste. Patients should be monitored for mood or behavior changes, including depression or suicidal ideation. The medication should be taken after eating with a full glass of water. Patients should set a quit date and begin treatment 1-2 weeks prior to that date for best results.
Official drug label
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This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.
This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.
If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.
Medically reviewed by WellAlly Editorial Team Last reviewed July 26, 2026. · Read our editorial policy