ly to natural or synthetic opioids; drug addiction; drug abuse; withdrawal phenomena following drug addiction; alcohol addiction; alcohol abuse and withdrawal phenomena following alcohol addiction; for diuresis; for antinatriuresis; for affection of the cardiovascular system; for vigilance enhancement; for treatment of wounds and/or burning; for treatment of severed nerves; for libido enhancement; for modulation of movement activity; for anxiolysis; for local anesthesia and/or for inhibition of undesirable side effects, preferably selected from the group consisting of hyperthermia, hypertension, and bronchial constriction, as 