“…The different psychotherapeutic methods (behavior al, family and individual) endeavor to eliminate these aggressive behavior models, while the medical treatments attempt to achieve results by influencing the affectivity or putting an end to emotional hypersensitivity or at least diminishing it [21,22,31,39], As neither of these methods has brought about radi cally successful results, a repeated effort must be taken towards finding newer ones or combining the previous methods, the more so, because the various antiaggressive drugs may often cause undesirable side effects (phenothiazines and butyrophenones, for instance, may cause dys kinesia, or damage the liver and the blood-producing sys tem, or may even cause epileptic seizures). Furthermore, when in certain cases psychostimulant drugs are indi cated, the danger of developing addiction in the patient demands special care [4,39,41], Taking all this into con sideration influenced our decision to use lithium carbon ate in cases of hyperaggressive children who had not reacted adequately to the traditional pharmaco-and psy chotherapeutic treatments [19,[28][29][30]43]. The advan tage of the lithium treatment lies in the fact that the dif ference between the therapeutic and the toxic blood levels is relatively greater, and in case of continuous medica tion, the possible side effects arc usually not irreversibleif the control is adequate [2,10].…”