Mild itching, redness, burning, and stinging at the application site may occur. Stop using this product and tell your doctor if redness caused by the patch does not go away after 4 days. Nausea, dizziness, flushing, heartburn, or headache may also occur. Common nicotine withdrawal symptoms can occur when you stop smoking and include dizziness, anxiety, depression, or trouble sleeping, among others. If any of these withdrawal symptoms or side effects last or get worse, tell your doctor or pharmacist promptly. If your doctor has directed you to use this medication, remember that your doctor has judged that the benefit to you is greater than the risk of side effects. Many people using this medication do not have serious side effects. Serious side effects are more likely if you continue to smoke while using this product. Stop using this medication and tell your doctor right away if you have any serious side effects, including: mental/mood changes (such as irritability, trouble sleeping, vivid dreams), numbness/tingling in hands/feet, swelling hands/ankles/feet. Stop using this medication and get medical help right away if you have any very serious side effects, including: chest pain, confusion, severe headache, fast/irregular/pounding heartbeat, trouble speaking, weakness on one side of the body. A very serious allergic reaction to this drug is rare. However, get medical help right away if you notice any symptoms of a serious allergic reaction, including: rash, itching/swelling (especially of the face/tongue/throat), severe dizziness, trouble breathing. This is not a complete list of possible side effects. If you notice other effects not listed above, contact your doctor or pharmacist. In the US - Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088 or at www.fda.gov/medwatch. In Canada - Call your doctor for medical advice about side effects. You may report side effects to Health Canada at 1-866-234-2345.
Stopping smoking can change the way the liver removes certain drugs from the body (including acetaminophen, caffeine, insulin, oxazepam, pentazocine, propoxyphene, propranolol, theophylline, tricyclic antidepressants such as amitriptyline/imipramine, water pills/diuretics such as furosemide). Tell all your doctors and pharmacists that you are quitting smoking.