Sinusoidal modulated currents contribute to the improvement of blood circulation and tissue trophism by direct excitation of the nerves and numerous receptors and by reflex. At the same time, depending on the location of the impact of improving not only peripheral, but coronary and renal blood flow. Sinusoidal modulated currents are used to restore the function of many organs and systems. In particular, to improve the drainage function of bronchi in chronic bronchopulmonary diseases. Stimulation of blood circulation, improvement of trophism and tissue analgesic effect underlies antiinflammatory action currents.