Why is Chantix prescribed?

Varenicline (Chantix) is prescribed in combination with counseling and making behavioral changes to help people quit or stop smoking. It is not recommended for use in people less than 16 years old.

What does it do?

When you smoke, Nicotine causes your brain to release substances that improve your mood and behavior, which can lead to addiction or dependence. Tobacco also contains substances that can cause cancer and other serious diseases. Chantix belongs to a drug class called smoking cessation aids and it blocks the effects of Nicotine in the brain, reducing its addictive property.

How should I take it?

Chantix is currently available in 0.5/1mg tablets. Each tablet should be taken as a whole (do not split) by mouth with food.

The dosage strength depends on every patient’s condition and the doctor’s prescription. It is imperative that you do not self-medicate and only take this drug after consulting with your doctor or pharmacist to determine the best dosage and dosing schedule for the treatment of your condition.

What if I missed a dose?

The desired effects of prescribed medications will only be achieved if taken properly. As much as possible, strictly follow your doctor’s prescribed dosing schedule. However, if you miss a dose, take it immediately and adjust the time of your next dose depending on your doctor’s advice. Never take two doses at the same time just to make up for your missed dose.

What are the special precautions before taking Chantix?

Inform your doctor about all the medications you are taking, your current and previous medical history, and any allergic reactions to Chantix or any other ingredients included in the manufacture of this medication.

Taking Chantix may cause behavioral changes and suicidal tendencies. Inform your doctor immediately if you notice these changes and ensure your family or caregivers are aware of these changes as well.

Taking Chantix may cause drowsiness, dizziness, loss of consciousness, or concentration problems. Avoid doing activities that require your full attention such as driving or operating machinery until you feel it is safe to do so.

For the drug label information of Chantix, click here.

Does it have any side effects?

It is important to note that all drugs have corresponding side effects and adverse reactions. Additional information may be obtained when you ask your doctor or pharmacist.

Common side effects may include:
• Abdominal pain
• Appetite changes
• Constipation
• Dry throat
• Fatigue
• Flatulence
• Headaches
• Heartburn
• Irregular menstrual cycles
• Muscle pain
• Nausea
• Vomiting

Serious side effects may include:
• Aggressiveness
• Balance problems
• Behavioral changes
• Chest pain
• Depression
• Difficulty breathing
• Hoarseness
• Mouth blisters
• Numbness or weakness of one side of the body
• Rashes
• Seizures
• Sleepwalking
• Slurred speech
• Suicidal thoughts or self-harm
• Unusual dreams

Is it safe to take it with another drug?

Some drug interactions may cause serious or life-threatening reactions when administered together. Immediately inform your doctor if you are taking Chantix with any of the following medications:

• Advair
• Aldactone
• Aztreonam
• Bacitracin
• Betapace
• Brintellix
• Bystolic
• Cilostazol
• Cimetidine
• Coumadin
• Dolutegravir
• Dyrenium
• Entrestro
• Epitizide
• Esmolol
• Fondaparinux
• Haloperidol
• Insulin
• Isoptin
• Lamictal
• Levaquin
• Lopinavir
• Mebutizide
• Oseltamivir
• Oxazepam
• Ranexa
• Saxagliptin
• Tasmar
• Terbutaline
• Topamax
• Tropisetron
• Uniphyllin
• Vandetanib
• Wellbutrin
• Xipamide
• Zomepirac

Ask your doctor or pharmacist for other possible interactions not listed within this section.

How should I store it?

Store Chantix in a tight container in a clean environment away from excessive heat and moisture.

What action should I take in case of overdose?

Immediately call an ambulance and seek immediate medical attention to prevent further complications or possible death.

Is it safe for pregnant or breastfeeding women?

Present data suggest that the use of Varenicline in pregnant women has not established its developmental risks.

There is also limited data on the presence of Chantix in human milk or its effects on the breastfed infant. Hence, the potential risks and benefits of using Chantix in pregnant or breastfeeding infants should be carefully considered.

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