This device is typically used in patients with cancer or patients with severe spasticity symptoms. Implantable drug delivery systems are surgically implanted beneath the skin of the abdomen or buttocks and a catheter is implanted into the cerebrospinal fluid next to the spinal cord. The implanted drug delivery pump continuously infuses medication next to the spinal cord to control undesirable symptoms. These procedures are typically performed in a hospital or surgery center operating room with an anesthesiologist caring for the patient during the procedure. Usually the patient will be able to go home after the procedure.