This study seeks to evaluate the use of Brief Motivational Intervention in a telephone counseling service offered to young people in the process of cessation of crack cocaine use. A descriptive study was conducted based on a survey of the records of callsfrom users during the period January 2006 to December 2007. The researchers included 40 recordsfrom calls of young people aged between 16 and 24 years who consumed crack cocaine, associated or not with other substances. At the end of the six-month follow up, 65% of youths had stopped the consumption of crack cocaine. Of the total, 57.5% were in stage of preparation and action on the first call. The chances of relapse to crack cocaine use were higher in follow-ups to 30 days. The conclusion suggests that the association of IBM with telephone counseling is an important treatment option in cessation of crack cocaine use.