[Effects of tilidin and naloxone on pulmonary function (author's transl)]

The respiratory depressant effect of tilidine (valoron) was investigated in anaesthetized patients. One hundred mg of tilidine had a slight respiratory depressant effect which was without importance in awake subjects. The respiratory depression caused by tilidine could be antagonized by naloxone while the analgesic effect was maintained. This suggests a dissociation of the mechanisms responsible for the respiratory and the analgesic actions.