For quitting smoking.
Brand Name(s): Chantix
Generic Name: Varenicline
Instructions
Take the medicine with 250 mL (1 cup) of water.
Take the medicine after eating a meal.
Store at room temperature away from heat, light, and moisture. Do not keep in the bathroom.
Choose a date to quit smoking. Start this medicine 1 week before your chosen day to quit smoking.
It is important that you keep taking each dose of this medicine on time even if you are feeling well.
If you forget to take a dose on time, take it as soon as you remember. If it is almost time for the next dose, do not take the missed dose. Return to your normal schedule. Do not take 2 doses at one time.
Drug interactions can change how medicines work or increase risk for side effects. Tell your health care providers about all medicines taken. Include prescription and over-the-counter medicines, vitamins, and herbal medicines. Speak with your doctor or pharmacist before starting or stopping any medicine.
Cautions
This medicine is not recommended for use in children younger than 16.
Tell your doctor and pharmacist if you ever had an allergic reaction to a medicine.
Speak with your doctor about how you feel after you quit smoking. Some people on this medicine may feel depressed, have trouble sleeping, become irritable, or gain weight. Discuss these symptoms with your doctor. Your doctor may wish to adjust your medication dosage.
Do not use the medication any more than instructed.
Your ability to stay alert or to react quickly may be impaired by this medicine. Do not drive or operate machinery until you know how this medicine will affect you.
Call the doctor if there are any signs of confusion or unusual changes in behavior.
Tell the doctor or pharmacist if you are pregnant, planning to be pregnant, or breastfeeding.
Do not share this medicine with anyone who has not been prescribed this medicine.
Some patients have serious side effects from this medicine. Ask your pharmacist to show you the information from the Food and Drug Administration (FDA) and discuss it with you.
Side Effects
The following is a list of some common side effects from this medicine. Please speak with your doctor about what you should do if you experience these or other side effects.
- agitated feeling or trouble sleeping
- constipation
- drowsiness or sedation
- excess gas
- headaches
- nausea and vomiting
- vivid dreams or nightmares
Call your doctor or get medical help right away if you notice any of these more serious side effects:
- change in behavior
- chest pain
- changes in memory, mood, or thinking
- depression or feeling sad
- hallucinations (unusual thoughts, seeing or hearing things that are not real)
- mood changes
- shortness of breath
- symptoms of stroke (such as one-sided weakness, slurred speech, confusion)
A few people may have an allergic reaction to this medicine. Symptoms can include difficulty breathing, skin rash, itching, swelling, or severe dizziness. If you notice any of these symptoms, seek medical help quickly.
Please speak with your doctor, nurse, or pharmacist if you have any questions about this medicine.
IMPORTANT NOTE: This document tells you briefly how to take your medicine, but it does not tell you all there is to know about it. Your doctor or pharmacist may give you other documents about your medicine. Please talk to them if you have any questions. Always follow their advice.
There is a more complete description of this medicine available in English. Scan this code on your smartphone or tablet or use the web address below. You can also ask your pharmacist for a printout. If you have any questions, please ask your pharmacist.
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Conditions of Use: The information in this database is intended to supplement, not substitute for the expertise and judgment of healthcare professionals. The information is not intended to cover all possible uses, directions, precautions, drug interactions or adverse effects nor should it be construed to indicate that use of a particular drug is safe, appropriate or effective for you or anyone else. A healthcare professional should be consulted before taking any drug, changing any diet or commencing or discontinuing any course of treatment. The display and use of this drug information is subject to express Terms of Use.