The present invention relates to a cytokine for use in the treatment and/or control of dependent and/or addictive behavior, in particular addiction and/or dependency to nicotine, food addiction, alcohol addiction and/or sex addiction. The present invention also relates to treatment and/or control of withdrawal and/or symptoms of withdrawal from an addiction, in particular nicotine addiction, food addiction, alcohol addiction and/or sex addiction. The present invention further relates to the induction of loss of interest or aversion to the addictive substance or behavior, such as nicotine, over-indulgence in high-calorie, high-fat foods, and to other behaviors or addictions that are hazardous to the health.