FIELD: medicine, particularly, pharmaceutical industry produced preparations of therapeutic and prophylactic action. SUBSTANCE: claimed additive may be used for prophylaxis of diseases of cardiovascular system. Biologically active additive includes potassium and magnesium asparaginate, hawthorn and valerian infusions, and auxiliary substances used in determined ratio. EFFECT: broadened range of therapeutic action, improved functional condition of cardiovascular system, hypertensive disease and arrhythmia. 2 cl, 2 tbl, 1 ex
