The invention relates to an apparatus for electrotherapeutic treatment of the human body, which has electrodes that can be laid against the body and a device for producing a therapy current that flows through the body, by way of the electrodes, whereby the device for generating the therapy current comprises two oscillators having frequencies f1 and f2 that lie close to one another and are suitable for forming a beat, an oscillator having a frequency f2 that is less than the beat frequency fs1=f1−f2, and a mixer device for superimposition of the oscillator signals. According to the invention, the device for producing the therapy current comprises at least two additional oscillators with frequencies f4 and f5, and the mixer device is provided with frequencies f1 to f5 for superimposition of all oscillators.
