[Tiapride and verbal or motor stereotypies (author's transl)]

Various repeated and involuntary stereotypies may affect some patients. Limb muscles and/or language may be involved in these phenomenons. Tiapride, per os, at a dosage of 300 to 600 mg/day leads in most of cases to a total disappearance or a perceptible improvement of these pathological manifestations. There were neither side effects in the patients reported herein, nor iatrogenic parkinsonism. In this paper the mechanism of action of this drug, in relation to its other therapeutic effects, is discussed.