[Agranulocytosis after antiarrhythmic therapy with ajmalin (author's transl)].

A case of agranulocytosis (min. leucocyte count 980/mm3) after 4 weeks of treatment with an ajmalin derivate is reported. Recovery could be achieved by taking away the antiarrhythmic drug. It appears that these agranulocytoses only happen after a dosage of more than 300 mg/die, and that they have an intermediate position between allergic and toxic agranulocytosis (phenothiazine type).