Smoking Reduction or Cessation With Nicotine Replacement Therapy

Inclusion Criteria: * Age above 18 * Smoking \>/= 15 cigarettes/day * Having smoked for 3 years or more * CO \>/= 10ppm at inclusion * Want to reduce smoking * Prepared to adhere to the protocol * Willing to provide signed informed consent * Having made at least one serious attempt to quit smoking Exclusion Criteria: * Unstable angina pectoris, myocardial infarction within the last three months * Use of other nicotine-containing products such as cigars, pipes, snuff * Current use of NRT or involved in behavioral or pharmacological smoking cessation/reduction program * Pregnancy/lactation or intended pregnancy * Under psychiatric care or medication that might interfere with the trial * Abuse of alcohol or any other drug