The present invention relates to a novel use of opioid compounds for treatment of a neurologic or neurogenic disorder. Such neurologic or neurogenic disorders include lingual, pharyngeal, laryngeal, esophageal, urinary bladder sphincter, lumbar and lumbo-sacral spine, and pelvis and pelvic limb paresis/paralysis. The invention provides a unique method of treating a specified disorder or syndrome by administering to a subject in need of such treatment a therapeutically effective amount of an opioid compound.