Zyban also helps reduce some of the more bothersome nicotine withdrawal symptoms associated with smoking cessation. For example, it can reduce anxiety, irritability, frustration, difficulty concentrating, and restlessness. The most-reported side effect from the nicotine patch is skin irritation. Those who use a 24-hour patch sometimes report having vivid dreams. The patch may also cause headache or joint pain .
Nicotine gum can cause some minor mouth, tongue, and throat irritation.
It may also cause an arrhythmia and palpitations . Swallowing the gum can cause nausea or vomiting . The most common side effects from the nasal spray are irritation of the nose and throat, watering eyes, sneezing, and cough . These side effects may lessen in intensity after the first week of use. The most common side effect of the nicotine inhaler is irritation of the lining of the mouth and throat.