Abstract: The invention contemplates an electroneuromuscular stimulator or therapy device wherein muscles may be stimulated through application of sufficiently characterized electrical pulses to a living body, via nerve endings related to the desired muscles to be stimulated. In the form disclosed, the device has proved to be of particular utility in equine electrotherapy. The device provides all power-source high-voltage generation and more delicate components in a single portable case, requiring only the attachment of flexible leads to a body-applicator electrode and to a body-grounding or return electrode; both body electrodes are rugged and are readily and safety applied by relatively unskilled personnel, subject to supervision or order of such licensed veterinary or other appropriate authority as local law may require.