A study of 116 patients with nonstable stenocardia (age of the patients: 29-68 years). In 54 of them laser irradiation of the blood (LIB) was used, in 62--autorheography revealed a selective character of influence of LIB and ATIB on the hemo-hemotransfusion of irradiated blood (ACIB) and 32 received only drugs. Tetrapolar dynamics: tendency to averaging of the cardiac ejection. In patients with initially low values--an increase and with initially high values--a reduction. Possibly, this reaction has a nonspecific character and reflects the reaction of circulation to stabilization of the patients' condition. The hemodynamic parameters did not deteriorate below critical levels. Hence, these methods may be used in patients with nonstable stenocardia associated with initial disorders of the central and peripheral hemodynamics.