[A case of hemiballism].

When an hemiballism case occurs to a 73 year old patient having obtained few results of chlorpromazine, a tiapridal treatment is tried. First, by the means of an injection during twelve days, then by an oral way, the results are spectacular since the first week, without any disclosing secondary effect. In spite of an unperceivable shivering of both, the lower member and the right leg, the immediate results by tiapridal are further more positive, compared to those obtained by the neuroleptic treatments.