As with all medicines, there are several side effects that may occur when using nicotine gum. Some effects may also occur due to abstinence from smoking.

Some of the more common side effects include:

      • Throat irritation

      • Increased salivation

      • Taste disturbances

      • Nausea

      • Headache

      • Cough

      • Stomach discomfort

      • Mouth ulcers