The goal of the project is to raise awareness on the risks of alcohol consumption. The intervention concerned 884 students between 14 and 24 years old. The investigation was carried out at three different moments. Firstly, adolescents answered a questionnaire in order to investigate the initial level of alcohol consumption awareness: effects of alcohol on driving, limits of alcohol consumption permitted
by law and effects on the body. The second step was an information campaign about alcohol consumption through the use of informative material and meetings with teachers, acting as "preventive intervention multipliers". Furthermore, adolescents answered a second questionnaire to measure the effects of the formation and information activities. The final aim of this paper is to analyse the awareness levels reached by adolescents after a preventative intervention and evaluate the efficiency of the preventative intervention in different groups of adolescents.