[Prophylaxis and treatment of pediculosis with Quassia amarga].

A double-blind study against placebo was done in two primary schools of the west of La Pampa, with 105 and 43 pupils respectively. The object of this work was to find out the prophylactic action of the Quassia Amarga in the pediculosis of the human scalp. The number of new infested cases in both groups turned out to be most significant according to the formula SQUARE CHI. No adverse reactions were found after the application of the respective alcoholic solutions. As a result, we conclude that: a) The prophylactic and therapeutic action of the Quassia Amarga in the human pediculosis is confirmed. b) A noticeable reduction in expenses to eradicate permanently this form of parasitation at an official as well as at a community level is of importance.