[Therapeutical approach to involuntary movements (author's transl)].

Thirty-three patients presenting an extra-pyramidal pathology with important involuntary movements have been treated with tiapride. The main beneficial results have been obtained in Huntington's chorea and in certain types of myoclony. The association with L-dopa, must be discussed. Only some L-dopa induced dyskinesias are improved; moreover tiaprid may antagonize L-dopa. The essential familial tremor is never improved.