Massed negative practice as a behavioral treatment for Gilles de la Tourette's syndrome.

Gilles de al Tourette's syndrome with its vocal and motor tics has been treated successfully with haloperidol and in some cases with massed negative practice. Two additional cases of successful treatment with massed negative practice are presented, one with additional psychotherapy, one with two-year follow-up. The combined use of haloperidol and massed negative practice may be optimal in some cases.