[ABSTRACT] A three group tobacco consumption reduction study was done: Nicotine substitute (N=15), sensibilization (N=15) and behavioral training (N=9). Cuantitave results not shows statistical differences about whole consumption between the groups, but cualitative analysis on consumption rates and temporal distribution shows it in every groups. Results shows a similar decreasing pattern in first and third groups (near to 40% decreasing rate and 30% of absolute abstience subjects) at middle (3 m