Enhanced therapies for treating pain are described. The therapies include
subcutaneous stimulation of tissue in proximity to a source of pain at
low frequencies (less than about 20 Hz) and high frequencies (greater
than about 50 Hz). The therapies further include administering a pain
treating agent at a predetermined time relative to application of the
high or low frequency stimulation. Delivery of the pain treating agent
via an implantable infusion system is described. Coordination of output
of an infusion device and a pulse generator to provide coordinated
therapy is also discussed.